664570254627352 has 64 divisors (see below), whose sum is σ = 1328786979340320. Its totient is φ = 310509206611968.

The previous prime is 664570254627319. The next prime is 664570254627421. The reversal of 664570254627352 is 253726452075466.

It is a congruent number.

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, 16000218 + ... + 39813910.

Almost surely, 2^{664570254627352} is an apocalyptic number.

It is an amenable number.

664570254627352 is a deficient number, since it is larger than the sum of its proper divisors (664216724712968).

664570254627352 is a wasteful number, since it uses less digits than its factorization.

664570254627352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23815180 (or 23815176 counting only the distinct ones).

The product of its (nonzero) digits is 508032000, while the sum is 64.

The spelling of 664570254627352 in words is "six hundred sixty-four trillion, five hundred seventy billion, two hundred fifty-four million, six hundred twenty-seven thousand, three hundred fifty-two".