quintillion 

A number, 1,000,000,000,000,000,000 or 10^18.

There are a quintillion drops of water in the lake.

quintillion by 5'1"Racer April 29, 2005

Quintillion 

A large number. Comes after quadrillion.
It has 21 zeros
1,00,000,000,000,000,000,000

quint- (“five”) + -illion; ie the fifth power of a million, 10.30.

After Quintillion comes sextillion, then septillion ect.

Quintillion by sharks445 September 25, 2011

Quintillion 

1. A number with 18 zeros behind it.

1,000,000,000,000,000,000-Quintillion

Quintillion by MACHaraina January 21, 2016

quintillion googleplexes worth of seggers 

A term used to represent the enormous amount of problems in programming while encountering numerous seggers

See quintillion googleplex, segger

So I was programming the other day and I got a quintillion googleplexes worth of seggers!

quintillion googleplexes worth of seggers by GhettoDefined June 9, 2004

Quintrillion 

Not to be confused with quintillion. Quintrillion can be calculated as 1 trillion to the fifth power. As a numerical format it can be represented by 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000. Or as some calculators will say “1e+60”. This number used in a percentage magnitude is still not quite as large as any kind of variation of pi but is the still larger than the socially common 100% or 110% as some people like to use. It can be argued that this number could be higher or lower than any kind of percentage used in the random spamming of the number keys on any phone, laptop, tablet, game controllers, typewriters, or telegrams.

Person 1: “ I agreed to help my friend with this (thing) again.”
Person 2: “Oh. Fun. Lol.”
Person 1: “Lol right?”
Person 2: “One quintrillion percent.”

Quintrillion by des3 August 6, 2018

Senatus Gaius Quintillius Xarxes

The Senate...
The Killer of Milkdrinkers,Wolves,Scotts,Monotheists,Rebels...
True son of Rome...
True to Caesar...
In LEG X

'Senatus Gaius Quintillius Xarxes' will have thou head...

Senatus Gaius Quintillius Xarxes by Palpatine_Sheev April 16, 2019

Quatillion 

Quatillion is the largest number ever, and it is so large it is infinitely larger than infinity, and almost a quatillion times larger (but not quite, cos that'd be impossibly huge.) The sum to find one Quatillion is as follows:

1 Googol X 1 Quatillion

To put the imenseness of quatillion into perspective, if you had one quatillion grains of sand, you would not be able to fit even one jillionth of them into the universe. Nobody has ever done anything that warranted the use of a number so high as "Quatillion" as it is really big. In your life time, you wont do anything a Quatillion times.

No example warrants the use of "Quatillion" as it is just too big.

Quatillion by Jimma May 26, 2004