16797771936 has 72 divisors (see below), whose sum is σ = 52111279584. Its totient is φ = 5090232960.

The previous prime is 16797771919. The next prime is 16797771943. The reversal of 16797771936 is 63917779761.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2647996 + ... + 2654331.

It is an arithmetic number, because the mean of its divisors is an integer number (723767772).

Almost surely, 2^16797771936 is an apocalyptic number.

16797771936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16797771936 is an abundant number, since it is smaller than the sum of its proper divisors (35313507648).

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

16797771936 is a wasteful number, since it uses less digits than its factorization.

16797771936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302354 (or 5302343 counting only the distinct ones).

The product of its digits is 21003948, while the sum is 63.

The spelling of 16797771936 in words is "sixteen billion, seven hundred ninety-seven million, seven hundred seventy-one thousand, nine hundred thirty-six".