64564156 has 12 divisors (see below), whose sum is σ = 115615192. Its totient is φ = 31531248.

The previous prime is 64564111. The next prime is 64564163. The reversal of 64564156 is 65146546.

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 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, 187515 + ... + 187858.

Almost surely, 2^64564156 is an apocalyptic number.

It is an amenable number.

64564156 is a deficient number, since it is larger than the sum of its proper divisors (51051036).

64564156 is a wasteful number, since it uses less digits than its factorization.

64564156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375420 (or 375418 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 64564156 is about 8035.1823874757. The cubic root of 64564156 is about 401.1718883414.

The spelling of 64564156 in words is "sixty-four million, five hundred sixty-four thousand, one hundred fifty-six".