15563505152 has 40 divisors (see below), whose sum is σ = 33488674296. Its totient is φ = 7183153152.

The previous prime is 15563505137. The next prime is 15563505187. The reversal of 15563505152 is 25150536551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162478 + ... + 1175789.

Almost surely, 2^15563505152 is an apocalyptic number.

It is an amenable number.

15563505152 is an abundant number, since it is smaller than the sum of its proper divisors (17925169144).

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

15563505152 is an equidigital number, since it uses as much as digits as its factorization.

15563505152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338298 (or 2338282 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 15563505152 in words is "fifteen billion, five hundred sixty-three million, five hundred five thousand, one hundred fifty-two".