15564908960 has 96 divisors (see below), whose sum is σ = 39022763472. Its totient is φ = 5846548480.

The previous prime is 15564908929. The next prime is 15564908981. The reversal of 15564908960 is 6980946551.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5961692944 + 9603216016 = 77212^2 + 97996^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247714 + ... + 1260126.

Almost surely, 2^15564908960 is an apocalyptic number.

15564908960 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 15564908960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19511381736).

15564908960 is an abundant number, since it is smaller than the sum of its proper divisors (23457854512).

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

15564908960 is a wasteful number, since it uses less digits than its factorization.

15564908960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12906 (or 12898 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 15564908960 in words is "fifteen billion, five hundred sixty-four million, nine hundred eight thousand, nine hundred sixty".