664364502 has 12 divisors (see below), whose sum is σ = 1439456460. Its totient is φ = 221454828.

The previous prime is 664364501. The next prime is 664364527. The reversal of 664364502 is 205463466.

664364502 is a `hidden beast` number, since 6 + 6 + 4 + 3 + 645 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664364501) 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 5 ways as a sum of consecutive naturals, for example, 18454552 + ... + 18454587.

It is an arithmetic number, because the mean of its divisors is an integer number (119954705).

Almost surely, 2^664364502 is an apocalyptic number.

664364502 is an abundant number, since it is smaller than the sum of its proper divisors (775091958).

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

664364502 is a wasteful number, since it uses less digits than its factorization.

664364502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36909147 (or 36909144 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 664364502 is about 25775.2691935506. The cubic root of 664364502 is about 872.5737419850.

The spelling of 664364502 in words is "six hundred sixty-four million, three hundred sixty-four thousand, five hundred two".