15880056128 has 28 divisors (see below), whose sum is σ = 31519672800. Its totient is φ = 7938091392.

The previous prime is 15880056119. The next prime is 15880056139. The reversal of 15880056128 is 82165008851.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 255023 + ... + 311121.

It is an arithmetic number, because the mean of its divisors is an integer number (1125702600).

Almost surely, 2^15880056128 is an apocalyptic number.

It is an amenable number.

15880056128 is a deficient number, since it is larger than the sum of its proper divisors (15639616672).

15880056128 is an equidigital number, since it uses as much as digits as its factorization.

15880056128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60534 (or 60524 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 15880056128 in words is "fifteen billion, eight hundred eighty million, fifty-six thousand, one hundred twenty-eight".