Create Free Account | Log In


A Decicentillion (1 Decicentillion) is 10 to the power of 333 (10^333). This is a stupendously astronomical number!

How many zeros in a Decicentillion?

There are 333 zeros in a Decicentillion.

What's before Decicentillion?

A Novencentillion is smaller than a Decicentillion.

What's after Decicentillion?

A Undecicentillion is larger than a Decicentillion.


A Decicentillionaire is someone whos assets, net worth or wealth is 1 or more Decicentillion. It is unlikely anyone will ever be a true Decicentillionaire. If you want to be a Decicentillionaire, play Tap Tales!

Is Decicentillion the largest number?

Decicentillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Decicentillion written out

Decicentillion is written out as:


Big Numbers

This is just one of many really big numbers!

Play Now

Choose your device:

FREE to download and play!