65604354664 has 32 divisors (see below), whose sum is σ = 125046282240. Its totient is φ = 32258865600.

The previous prime is 65604354659. The next prime is 65604354677. The reversal of 65604354664 is 46645340656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5396577 + ... + 5408719.

It is an arithmetic number, because the mean of its divisors is an integer number (3907696320).

Almost surely, 2^65604354664 is an apocalyptic number.

It is an amenable number.

65604354664 is a deficient number, since it is larger than the sum of its proper divisors (59441927576).

65604354664 is a wasteful number, since it uses less digits than its factorization.

65604354664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23281 (or 23277 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 65604354664 in words is "sixty-five billion, six hundred four million, three hundred fifty-four thousand, six hundred sixty-four".