764560164 has 12 divisors (see below), whose sum is σ = 1783973744. Its totient is φ = 254853384.

The previous prime is 764560157. The next prime is 764560177. The reversal of 764560164 is 461065467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 31856662 + ... + 31856685.

Almost surely, 2^764560164 is an apocalyptic number.

It is an amenable number.

764560164 is an abundant number, since it is smaller than the sum of its proper divisors (1019413580).

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

764560164 is a wasteful number, since it uses less digits than its factorization.

764560164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63713354 (or 63713352 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 764560164 is about 27650.6810766028. The cubic root of 764560164 is about 914.4021153092.

The spelling of 764560164 in words is "seven hundred sixty-four million, five hundred sixty thousand, one hundred sixty-four".