16720540204 has 24 divisors (see below), whose sum is σ = 30060894080. Its totient is φ = 8131850496.

The previous prime is 16720540201. The next prime is 16720540261. The reversal of 16720540204 is 40204502761.

It is not an unprimeable number, because it can be changed into a prime (16720540201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531877 + ... + 562435.

Almost surely, 2^16720540204 is an apocalyptic number.

It is an amenable number.

16720540204 is a deficient number, since it is larger than the sum of its proper divisors (13340353876).

16720540204 is a wasteful number, since it uses less digits than its factorization.

16720540204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34297 (or 34295 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 16720540204 in words is "sixteen billion, seven hundred twenty million, five hundred forty thousand, two hundred four".