What number has 66 zeros?




What number has 66 zeros? To be more specific, we assume you are asking what is 1 followed by exactly 66 zeros like this:

1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000

The name of a 1 with 66 zeros is displayed below:

One Unvigintillion

To put it in perspective, one unvigintillion has one more zero than one hundred vigintillion and one less zero compared to ten unvigintillion.


Numbers with Zeros
Now you know what number has 66 zeros. Submit another number of zeros here:




What number has 67 zeros?
Go here for information about the next number on our list that has many zeros.


Copyright  |   Privacy Policy  |   Disclaimer  |   Contact