164502564 has 12 divisors (see below), whose sum is σ = 383839344. Its totient is φ = 54834184.

The previous prime is 164502553. The next prime is 164502593. The reversal of 164502564 is 465205461.

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

It is a super-2 number, since 2×164502564² = 54122187125148192, which contains 22 as substring.

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, 6854262 + ... + 6854285.

It is an arithmetic number, because the mean of its divisors is an integer number (31986612).

Almost surely, 2^164502564 is an apocalyptic number.

It is an amenable number.

164502564 is an abundant number, since it is smaller than the sum of its proper divisors (219336780).

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

164502564 is a wasteful number, since it uses less digits than its factorization.

164502564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13708554 (or 13708552 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 164502564 is about 12825.8552931179. The cubic root of 164502564 is about 547.9289205765.

The spelling of 164502564 in words is "one hundred sixty-four million, five hundred two thousand, five hundred sixty-four".