15680115804 has 24 divisors (see below), whose sum is σ = 36646639120. Its totient is φ = 5218176384.

The previous prime is 15680115779. The next prime is 15680115817. The reversal of 15680115804 is 40851108651.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058449 + ... + 1073160.

Almost surely, 2^15680115804 is an apocalyptic number.

It is an amenable number.

15680115804 is an abundant number, since it is smaller than the sum of its proper divisors (20966523316).

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

15680115804 is a wasteful number, since it uses less digits than its factorization.

15680115804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132229 (or 2132227 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 15680115804 in words is "fifteen billion, six hundred eighty million, one hundred fifteen thousand, eight hundred four".