64075664 has 40 divisors (see below), whose sum is σ = 127908480. Its totient is φ = 31079808.

The previous prime is 64075643. The next prime is 64075679. The reversal of 64075664 is 46657046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104222 + ... + 104834.

It is an arithmetic number, because the mean of its divisors is an integer number (3197712).

Almost surely, 2^64075664 is an apocalyptic number.

It is an amenable number.

64075664 is a deficient number, since it is larger than the sum of its proper divisors (63832816).

64075664 is a wasteful number, since it uses less digits than its factorization.

64075664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 64075664 is about 8004.7276031106. The cubic root of 64075664 is about 400.1575712534.

The spelling of 64075664 in words is "sixty-four million, seventy-five thousand, six hundred sixty-four".