16720973160 has 64 divisors (see below), whose sum is σ = 50209459200. Its totient is φ = 4454789376.

The previous prime is 16720973153. The next prime is 16720973177. The reversal of 16720973160 is 6137902761.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66346 + ... + 194534.

It is an arithmetic number, because the mean of its divisors is an integer number (784522800).

Almost surely, 2^16720973160 is an apocalyptic number.

16720973160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16720973160 is an abundant number, since it is smaller than the sum of its proper divisors (33488486040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16720973160 is a wasteful number, since it uses less digits than its factorization.

16720973160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129290 (or 129286 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 16720973160 in words is "sixteen billion, seven hundred twenty million, nine hundred seventy-three thousand, one hundred sixty".