15980465280 has 512 divisors, whose sum is σ = 59660697600. Its totient is φ = 3603087360.

The previous prime is 15980465233. The next prime is 15980465357. The reversal of 15980465280 is 8256408951.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14700897 + ... + 14701983.

It is an arithmetic number, because the mean of its divisors is an integer number (116524800).

Almost surely, 2^15980465280 is an apocalyptic number.

15980465280 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 15980465280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29830348800).

15980465280 is an abundant number, since it is smaller than the sum of its proper divisors (43680232320).

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

15980465280 is a wasteful number, since it uses less digits than its factorization.

15980465280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 15980465280 in words is "fifteen billion, nine hundred eighty million, four hundred sixty-five thousand, two hundred eighty".