664528935970608 has 80 divisors (see below), whose sum is σ = 1726315727159520. Its totient is φ = 220269833551872.

The previous prime is 664528935970469. The next prime is 664528935970619. The reversal of 664528935970608 is 806079539825466.

664528935970608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7180788 + ... + 37156716.

It is an arithmetic number, because the mean of its divisors is an integer number (21578946589494).

Almost surely, 2^{664528935970608} is an apocalyptic number.

It is an amenable number.

664528935970608 is an abundant number, since it is smaller than the sum of its proper divisors (1061786791188912).

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

664528935970608 is a wasteful number, since it uses less digits than its factorization.

664528935970608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29978526 (or 29978520 counting only the distinct ones).

The product of its (nonzero) digits is 4702924800, while the sum is 78.

The spelling of 664528935970608 in words is "six hundred sixty-four trillion, five hundred twenty-eight billion, nine hundred thirty-five million, nine hundred seventy thousand, six hundred eight".