664600574425522 has 32 divisors (see below), whose sum is σ = 1155364802887680. Its totient is φ = 280816454212560.

The previous prime is 664600574425493. The next prime is 664600574425591. The reversal of 664600574425522 is 225524475006466.

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, 739212979 + ... + 740111497.

It is an arithmetic number, because the mean of its divisors is an integer number (36105150090240).

Almost surely, 2^{664600574425522} is an apocalyptic number.

664600574425522 is a deficient number, since it is larger than the sum of its proper divisors (490764228462158).

664600574425522 is a wasteful number, since it uses less digits than its factorization.

664600574425522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642726.

The product of its (nonzero) digits is 96768000, while the sum is 58.

The spelling of 664600574425522 in words is "six hundred sixty-four trillion, six hundred billion, five hundred seventy-four million, four hundred twenty-five thousand, five hundred twenty-two".