64605164 has 12 divisors (see below), whose sum is σ = 121755984. Its totient is φ = 29817744.

The previous prime is 64605143. The next prime is 64605169. The reversal of 64605164 is 46150646.

It is a self number, because there is not a number n which added to its sum of digits gives 64605164.

It is not an unprimeable number, because it can be changed into a prime (64605169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621152 + ... + 621255.

It is an arithmetic number, because the mean of its divisors is an integer number (10146332).

Almost surely, 2^64605164 is an apocalyptic number.

It is an amenable number.

64605164 is a deficient number, since it is larger than the sum of its proper divisors (57150820).

64605164 is a wasteful number, since it uses less digits than its factorization.

64605164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242424 (or 1242422 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64605164 is about 8037.7337602088. The cubic root of 64605164 is about 401.2568052986.

The spelling of 64605164 in words is "sixty-four million, six hundred five thousand, one hundred sixty-four".