64562664 has 16 divisors (see below), whose sum is σ = 161406720. Its totient is φ = 21520880.

The previous prime is 64562621. The next prime is 64562681. The reversal of 64562664 is 46626546.

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, 1345032 + ... + 1345079.

It is an arithmetic number, because the mean of its divisors is an integer number (10087920).

Almost surely, 2^64562664 is an apocalyptic number.

It is an amenable number.

64562664 is an abundant number, since it is smaller than the sum of its proper divisors (96844056).

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

64562664 is a wasteful number, since it uses less digits than its factorization.

64562664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690120 (or 2690116 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 64562664 is about 8035.0895452384. The cubic root of 64562664 is about 401.1687981176.

The spelling of 64562664 in words is "sixty-four million, five hundred sixty-two thousand, six hundred sixty-four".