664552104 has 32 divisors (see below), whose sum is σ = 1662020640. Its totient is φ = 221432000.

The previous prime is 664552061. The next prime is 664552111. The reversal of 664552104 is 401255466.

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 7 ways as a sum of consecutive naturals, for example, 103714 + ... + 109934.

It is an arithmetic number, because the mean of its divisors is an integer number (51938145).

Almost surely, 2^664552104 is an apocalyptic number.

It is an amenable number.

664552104 is an abundant number, since it is smaller than the sum of its proper divisors (997468536).

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

664552104 is a wasteful number, since it uses less digits than its factorization.

664552104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681 (or 10677 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 664552104 is about 25778.9081227270. The cubic root of 664552104 is about 872.6558661668.

The spelling of 664552104 in words is "six hundred sixty-four million, five hundred fifty-two thousand, one hundred four".