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A Unsexagintillion (1 Unsexagintillion) is 10 to the power of 186 (10^186). This is an immensely enormous number!

How many zeros in a Unsexagintillion?

There are 186 zeros in a Unsexagintillion.

What's before Unsexagintillion?

A Sexagintillion is smaller than a Unsexagintillion.

What's after Unsexagintillion?

A Duosexagintillion is larger than a Unsexagintillion.


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

Is Unsexagintillion the largest number?

Unsexagintillion 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.

Unsexagintillion written out

Unsexagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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