816137164 has 12 divisors (see below), whose sum is σ = 1432480504. Its totient is φ = 406857024.

The previous prime is 816137159. The next prime is 816137213. The reversal of 816137164 is 461731618.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301374 + ... + 304069.

Almost surely, 2^816137164 is an apocalyptic number.

It is an amenable number.

816137164 is a deficient number, since it is larger than the sum of its proper divisors (616343340).

816137164 is a wasteful number, since it uses less digits than its factorization.

816137164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605784 (or 605782 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 816137164 is about 28568.1144635063. The cubic root of 816137164 is about 934.5181018305.

The spelling of 816137164 in words is "eight hundred sixteen million, one hundred thirty-seven thousand, one hundred sixty-four".