64036656 has 50 divisors (see below), whose sum is σ = 185344412. Its totient is φ = 21345120.

The previous prime is 64036649. The next prime is 64036663. The reversal of 64036656 is 65663046.

64036656 is a `hidden beast` number, since 640 + 3 + 6 + 6 + 5 + 6 = 666.

64036656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64036649) and next prime (64036663).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 64036656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23410 + ... + 26001.

Almost surely, 2^64036656 is an apocalyptic number.

It is an amenable number.

64036656 is an abundant number, since it is smaller than the sum of its proper divisors (121307756).

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

64036656 is a wasteful number, since it uses less digits than its factorization.

64036656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49431 (or 49416 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 64036656 is about 8002.2906720513. The cubic root of 64036656 is about 400.0763520916.

The spelling of 64036656 in words is "sixty-four million, thirty-six thousand, six hundred fifty-six".