19664130504 has 16 divisors (see below), whose sum is σ = 49160326320. Its totient is φ = 6554710160.

The previous prime is 19664130487. The next prime is 19664130517. The reversal of 19664130504 is 40503146691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409669362 + ... + 409669409.

It is an arithmetic number, because the mean of its divisors is an integer number (3072520395).

Almost surely, 2^19664130504 is an apocalyptic number.

It is an amenable number.

19664130504 is an abundant number, since it is smaller than the sum of its proper divisors (29496195816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19664130504 is a wasteful number, since it uses less digits than its factorization.

19664130504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819338780 (or 819338776 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 19664130504 in words is "nineteen billion, six hundred sixty-four million, one hundred thirty thousand, five hundred four".