15973055280 has 1440 divisors, whose sum is σ = 74502374400. Its totient is φ = 3124832256.

The previous prime is 15973055167. The next prime is 15973055291. The reversal of 15973055280 is 8255037951.

15973055280 is a `hidden beast` number, since 1 + 5 + 97 + 3 + 0 + 552 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 339852217 + ... + 339852263.

It is an arithmetic number, because the mean of its divisors is an integer number (51737760).

Almost surely, 2^15973055280 is an apocalyptic number.

15973055280 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 15973055280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37251187200).

15973055280 is an abundant number, since it is smaller than the sum of its proper divisors (58529319120).

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

15973055280 is a wasteful number, since it uses less digits than its factorization.

15973055280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 15973055280 in words is "fifteen billion, nine hundred seventy-three million, fifty-five thousand, two hundred eighty".