64504164 has 24 divisors (see below), whose sum is σ = 158431840. Its totient is φ = 20369664.

The previous prime is 64504147. The next prime is 64504249. The reversal of 64504164 is 46140546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141229 + ... + 141684.

Almost surely, 2^64504164 is an apocalyptic number.

It is an amenable number.

64504164 is an abundant number, since it is smaller than the sum of its proper divisors (93927676).

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

64504164 is a wasteful number, since it uses less digits than its factorization.

64504164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282939 (or 282937 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 64504164 is about 8031.4484372372. The cubic root of 64504164 is about 401.0475956300.

The spelling of 64504164 in words is "sixty-four million, five hundred four thousand, one hundred sixty-four".