664560713704 has 16 divisors (see below), whose sum is σ = 1246144093920. Its totient is φ = 332255622000.

The previous prime is 664560713689. The next prime is 664560713743. The reversal of 664560713704 is 407317065466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2977422 + ... + 3192829.

It is an arithmetic number, because the mean of its divisors is an integer number (77884005870).

Almost surely, 2^664560713704 is an apocalyptic number.

It is an amenable number.

664560713704 is a deficient number, since it is larger than the sum of its proper divisors (581583380216).

664560713704 is a wasteful number, since it uses less digits than its factorization.

664560713704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183720 (or 6183716 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 664560713704 in words is "six hundred sixty-four billion, five hundred sixty million, seven hundred thirteen thousand, seven hundred four".