15680804044 has 12 divisors (see below), whose sum is σ = 28885691800. Its totient is φ = 7427749248.

The previous prime is 15680803993. The next prime is 15680804053. The reversal of 15680804044 is 44040808651.

It is a junction number, because it is equal to n+sod(n) for n = 15680803988 and 15680804006.

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, 103163109 + ... + 103163260.

Almost surely, 2^15680804044 is an apocalyptic number.

It is an amenable number.

15680804044 is a deficient number, since it is larger than the sum of its proper divisors (13204887756).

15680804044 is a wasteful number, since it uses less digits than its factorization.

15680804044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206326392 (or 206326390 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 15680804044 in words is "fifteen billion, six hundred eighty million, eight hundred four thousand, forty-four".