A quadrillion is a million, million, million, millions or 10^24 from quad for four, you see a quadbike does not have two and a half wheels, just as a tricycle does not have two wheels (...look up trillion).
A quadrillion dollars is a million, million, million, millions of dollars or \$1, 000 000, 000 000, 000 000, 000 000.
by Repete456 December 28, 2010

1. a number equal to 1,000,000,000,000,000 or 10^15.
There are a quadrillion grains of sand on this beach.
by 5'1"Racer February 12, 2005

An extremely large number, even larger than fifteenty trillion. Decimal form: 190,000,000,000,000,000. Prefix: hectononagintapeta. Reverse: femtocentinonaginti.
I'm THAT hungry that i could eat ninteenty quadrillion of these cakes.
by The number scientist May 17, 2021

## 18 quintilton 446 quadrillion 774 trillion 073 billion 709 million 551 thousand 616 planets

The number of planets in no mans sky.
I wonder how many planets are in No Man's Sky?
18 quintilton 446 quadrillion 774 trillion 073 billion 709 million 551 thousand 616 planets
by not behind the meme August 16, 2017

## #1 superduperduperestduper * quadrillion buddy in the whole universe

Abby is my #1 superduperduperestduper * quadrillion buddy in the whole universe
by DERPEEDERP November 2, 2022