16931517168 has 20 divisors (see below), whose sum is σ = 43739752808. Its totient is φ = 5643839040.

The previous prime is 16931517077. The next prime is 16931517179. The reversal of 16931517168 is 86171513961.

It is a super-2 number, since 2×16931517168² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 352739941 = 16931517168 / (1 + 6 + 9 + 3 + 1 + 5 + 1 + 7 + 1 + 6 + 8).

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, 176369923 + ... + 176370018.

Almost surely, 2^16931517168 is an apocalyptic number.

It is an amenable number.

16931517168 is an abundant number, since it is smaller than the sum of its proper divisors (26808235640).

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

16931517168 is a wasteful number, since it uses less digits than its factorization.

16931517168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352739952 (or 352739946 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The spelling of 16931517168 in words is "sixteen billion, nine hundred thirty-one million, five hundred seventeen thousand, one hundred sixty-eight".