At least five.
If you want to, you can write a decimal point at the end of the number, and then add as many zeroes as you want after the decimal point. They won't change the value of the number.
20 zeros
There are twelve zeros in 100 million million. 100,000,000,000,000
There are six zeros in 376 million.
37 million (37,000,000) has six zeros.
There are 8 zeros.
20 zeros
There are twelve zeros in 100 million million. 100,000,000,000,000
8 zeros
There are fourteen zeros in 100 million million.
There are six zeros in 376 million.
There are 5 zeros in 16.5 million.
There are SIX zeros in a million !
Million have 6 zeros. So for 1.5 million 5 zeros. 1,500,000
1 million (1,000,000) has 6 zeros 50 million (50,000,000) has 7 zeros
A Novemtrigintillion is 10120 so there are 120 zeros.
13 zeros.
There are 5 zeros in 5.1 million.