64425164 has 6 divisors (see below), whose sum is σ = 112744044. Its totient is φ = 32212580.

The previous prime is 64425149. The next prime is 64425167. The reversal of 64425164 is 46152446.

It is a self number, because there is not a number n which added to its sum of digits gives 64425164.

It is not an unprimeable number, because it can be changed into a prime (64425167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8053142 + ... + 8053149.

It is an arithmetic number, because the mean of its divisors is an integer number (18790674).

Almost surely, 2^64425164 is an apocalyptic number.

It is an amenable number.

64425164 is a deficient number, since it is larger than the sum of its proper divisors (48318880).

64425164 is a wasteful number, since it uses less digits than its factorization.

64425164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16106295 (or 16106293 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 64425164 is about 8026.5287640424. The cubic root of 64425164 is about 400.8838041208.

The spelling of 64425164 in words is "sixty-four million, four hundred twenty-five thousand, one hundred sixty-four".