13317648664 has 8 divisors (see below), whose sum is σ = 24970591260. Its totient is φ = 6658824328.

The previous prime is 13317648647. The next prime is 13317648679. The reversal of 13317648664 is 46684671331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832353034 + ... + 832353049.

Almost surely, 2^13317648664 is an apocalyptic number.

It is an amenable number.

13317648664 is a deficient number, since it is larger than the sum of its proper divisors (11652942596).

13317648664 is a wasteful number, since it uses less digits than its factorization.

13317648664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664706089 (or 1664706085 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The spelling of 13317648664 in words is "thirteen billion, three hundred seventeen million, six hundred forty-eight thousand, six hundred sixty-four".