15972238560 has 96 divisors (see below), whose sum is σ = 50384587680. Its totient is φ = 4253165568.

The previous prime is 15972238559. The next prime is 15972238567. The reversal of 15972238560 is 6583227951.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×15972238560² (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 not an unprimeable number, because it can be changed into a prime (15972238567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316854 + ... + 363786.

It is an arithmetic number, because the mean of its divisors is an integer number (524839455).

Almost surely, 2^15972238560 is an apocalyptic number.

15972238560 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 15972238560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25192293840).

15972238560 is an abundant number, since it is smaller than the sum of its proper divisors (34412349120).

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

15972238560 is a wasteful number, since it uses less digits than its factorization.

15972238560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47660 (or 47652 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 15972238560 in words is "fifteen billion, nine hundred seventy-two million, two hundred thirty-eight thousand, five hundred sixty".