15996583680 has 288 divisors, whose sum is σ = 63696665088. Its totient is φ = 3323904000.

The previous prime is 15996583643. The next prime is 15996583693. The reversal of 15996583680 is 8638569951.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268630 + ... + 322730.

It is an arithmetic number, because the mean of its divisors is an integer number (221168976).

Almost surely, 2^15996583680 is an apocalyptic number.

15996583680 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 15996583680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31848332544).

15996583680 is an abundant number, since it is smaller than the sum of its proper divisors (47700081408).

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

15996583680 is a wasteful number, since it uses less digits than its factorization.

15996583680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54143 (or 54129 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 60.

The spelling of 15996583680 in words is "fifteen billion, nine hundred ninety-six million, five hundred eighty-three thousand, six hundred eighty".