16880857920 has 112 divisors (see below), whose sum is σ = 59551945920. Its totient is φ = 4501559808.

The previous prime is 16880857891. The next prime is 16880857927. The reversal of 16880857920 is 2975808861.

16880857920 is a `hidden beast` number, since 1 + 68 + 8 + 0 + 8 + 579 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16880857927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968262 + ... + 985541.

Almost surely, 2^16880857920 is an apocalyptic number.

16880857920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16880857920 is an abundant number, since it is smaller than the sum of its proper divisors (42671088000).

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

16880857920 is a wasteful number, since it uses less digits than its factorization.

16880857920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953829 (or 1953813 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 16880857920 in words is "sixteen billion, eight hundred eighty million, eight hundred fifty-seven thousand, nine hundred twenty".