15980044080 has 480 divisors, whose sum is σ = 67027709952. Its totient is φ = 3064596480.

The previous prime is 15980044079. The next prime is 15980044097. The reversal of 15980044080 is 8044008951.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2639617 + ... + 2645663.

Almost surely, 2^15980044080 is an apocalyptic number.

15980044080 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 15980044080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33513854976).

15980044080 is an abundant number, since it is smaller than the sum of its proper divisors (51047665872).

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

15980044080 is a wasteful number, since it uses less digits than its factorization.

15980044080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105 (or 6088 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 15980044080 in words is "fifteen billion, nine hundred eighty million, forty-four thousand, eighty".