164652564 has 12 divisors (see below), whose sum is σ = 384189344. Its totient is φ = 54884184.

The previous prime is 164652557. The next prime is 164652583. The reversal of 164652564 is 465256461.

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

It is a super-2 number, since 2×164652564² = 54220933663548192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6860512 + ... + 6860535.

Almost surely, 2^164652564 is an apocalyptic number.

It is an amenable number.

164652564 is an abundant number, since it is smaller than the sum of its proper divisors (219536780).

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

164652564 is a wasteful number, since it uses less digits than its factorization.

164652564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721054 (or 13721052 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 164652564 is about 12831.7015239601. The cubic root of 164652564 is about 548.0954111315.

The spelling of 164652564 in words is "one hundred sixty-four million, six hundred fifty-two thousand, five hundred sixty-four".