15980522880 has 384 divisors, whose sum is σ = 60279552000. Its totient is φ = 3589533696.

The previous prime is 15980522863. The next prime is 15980522959. The reversal of 15980522880 is 8822508951.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×15980522880² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5549281 + ... + 5552159.

It is an arithmetic number, because the mean of its divisors is an integer number (156978000).

Almost surely, 2^15980522880 is an apocalyptic number.

15980522880 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 15980522880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30139776000).

15980522880 is an abundant number, since it is smaller than the sum of its proper divisors (44299029120).

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

15980522880 is a wasteful number, since it uses less digits than its factorization.

15980522880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2955 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 48.

The spelling of 15980522880 in words is "fifteen billion, nine hundred eighty million, five hundred twenty-two thousand, eight hundred eighty".