18664698904 has 16 divisors (see below), whose sum is σ = 36517889520. Its totient is φ = 8926595040.

The previous prime is 18664698901. The next prime is 18664698917. The reversal of 18664698904 is 40989646681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18664698901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50719107 + ... + 50719474.

It is an arithmetic number, because the mean of its divisors is an integer number (2282368095).

Almost surely, 2^18664698904 is an apocalyptic number.

It is an amenable number.

18664698904 is a deficient number, since it is larger than the sum of its proper divisors (17853190616).

18664698904 is a wasteful number, since it uses less digits than its factorization.

18664698904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101438610 (or 101438606 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 18664698904 in words is "eighteen billion, six hundred sixty-four million, six hundred ninety-eight thousand, nine hundred four".