64365037056 has 120 divisors (see below), whose sum is σ = 193838776560. Its totient is φ = 20522151936.

The previous prime is 64365037039. The next prime is 64365037063. The reversal of 64365037056 is 65073056346.

64365037056 is a `hidden beast` number, since 64 + 36 + 503 + 7 + 0 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197671 + ... + 409638.

It is an arithmetic number, because the mean of its divisors is an integer number (1615323138).

Almost surely, 2^64365037056 is an apocalyptic number.

It is an amenable number.

64365037056 is an abundant number, since it is smaller than the sum of its proper divisors (129473739504).

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

64365037056 is a wasteful number, since it uses less digits than its factorization.

64365037056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607356 (or 607337 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The spelling of 64365037056 in words is "sixty-four billion, three hundred sixty-five million, thirty-seven thousand, fifty-six".