15936990680 has 96 divisors (see below), whose sum is σ = 41113072800. Its totient is φ = 5538244608.

The previous prime is 15936990637. The next prime is 15936990701. The reversal of 15936990680 is 8609963951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45581 + ... + 184259.

It is an arithmetic number, because the mean of its divisors is an integer number (428261175).

Almost surely, 2^15936990680 is an apocalyptic number.

15936990680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15936990680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20556536400).

15936990680 is an abundant number, since it is smaller than the sum of its proper divisors (25176082120).

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

15936990680 is a wasteful number, since it uses less digits than its factorization.

15936990680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138733 (or 138716 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 15936990680 in words is "fifteen billion, nine hundred thirty-six million, nine hundred ninety thousand, six hundred eighty".