15632878880 has 48 divisors (see below), whose sum is σ = 37930871160. Its totient is φ = 6084145152.

The previous prime is 15632878871. The next prime is 15632878907. The reversal of 15632878880 is 8887823651.

It can be written as a sum of positive squares in 4 ways, for example, as 15275971216 + 356907664 = 123596^2 + 18892^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314425 + ... + 1326264.

Almost surely, 2^15632878880 is an apocalyptic number.

15632878880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15632878880 is an abundant number, since it is smaller than the sum of its proper divisors (22297992280).

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

15632878880 is a wasteful number, since it uses less digits than its factorization.

15632878880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640741 (or 2640733 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 15632878880 in words is "fifteen billion, six hundred thirty-two million, eight hundred seventy-eight thousand, eight hundred eighty".