666 is an abundant number. It is the sum of the squares of the first seven prime numbers.

Since 36 is both square and triangular, 666 is the sixth number of the form n2(n2 + 1) / 2 (triangular squares) and the eighth number of the form n(n + 1)(n2 + n + 2) / 8 (doubly triangular numbers.)

There is no number whose value of Euler's totient function ö is 666, making it a nontotient.

The harmonic mean of the digits of 666 is an integer: 3/(1/6 + 1/6 + 1/6) = 6. 666 is the 54th number with this property.

In base 10, 666 is a palindromic number, a repdigit and a Smith number. A prime reciprocal magic square based on 1/149 in base 10 has a magic total of 666.

The Roman numeral representation of the number 666 (DCLXVI) uses once each the Roman numeral symbols with values under 1,000, and they occur in exact reverse order of their respective values (D = 500, C = 100, L = 50, X = 10, V = 5, I = 1).

Since 36 is both square and triangular, 666 is the sixth number of the form n2(n2 + 1) / 2 (triangular squares) and the eighth number of the form n(n + 1)(n2 + n + 2) / 8 (doubly triangular numbers.)

There is no number whose value of Euler's totient function ö is 666, making it a nontotient.

The harmonic mean of the digits of 666 is an integer: 3/(1/6 + 1/6 + 1/6) = 6. 666 is the 54th number with this property.

In base 10, 666 is a palindromic number, a repdigit and a Smith number. A prime reciprocal magic square based on 1/149 in base 10 has a magic total of 666.

The Roman numeral representation of the number 666 (DCLXVI) uses once each the Roman numeral symbols with values under 1,000, and they occur in exact reverse order of their respective values (D = 500, C = 100, L = 50, X = 10, V = 5, I = 1).

I had no idea that the number 666 had any relavance to a legitimate mathmatical formula!

by Cortan
May 23, 2006

Six hundred and sixty six. The number of anti-christ, the beast- what was actually implied is open to interpretation. The number is assocciated with satanism because it is the number to mark the downfall of christianity. Pussy-hole goths use this number to act hard. They are unaware everyone knows they don't have physchic powers and shit, so just kick seven shades of green shit outta them anyway.

Woe to you o earth and see, for the devil sends the beast with wrath, because he knows the time is short.

Let he who hath understanding reckon the number of the beast for it is a human number.

It's number is six hundred and sixty six.

-Revelations chapter 13, Verse 18. As said in "The number of the beast" by Iron Maiden

Let he who hath understanding reckon the number of the beast for it is a human number.

It's number is six hundred and sixty six.

-Revelations chapter 13, Verse 18. As said in "The number of the beast" by Iron Maiden

by Gumba Gumba
March 06, 2004

exsamples:

cocksucker666

666 4 LIFe

six6six

Jebusloves666

Gayfag666

goffik666

killmenow666

lovinit666

hornydude666

sexyou666

cocksucker666

666 4 LIFe

six6six

Jebusloves666

Gayfag666

goffik666

killmenow666

lovinit666

hornydude666

sexyou666

by dot dot dot
July 13, 2003

a sex position where all three participants are standing on their heads and two are taking it doggy-style

I just got a 666 with the Olsen twins!

by Sir_Cock33
February 17, 2010

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