16117181264 has 20 divisors (see below), whose sum is σ = 31530217056. Its totient is φ = 7980351072.

The previous prime is 16117181239. The next prime is 16117181273. The reversal of 16117181264 is 46218171161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888274 + ... + 4891569.

Almost surely, 2^16117181264 is an apocalyptic number.

It is an amenable number.

16117181264 is a deficient number, since it is larger than the sum of its proper divisors (15413035792).

16117181264 is a wasteful number, since it uses less digits than its factorization.

16117181264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779954 (or 9779948 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The spelling of 16117181264 in words is "sixteen billion, one hundred seventeen million, one hundred eighty-one thousand, two hundred sixty-four".