15631164552 has 16 divisors (see below), whose sum is σ = 39077911440. Its totient is φ = 5210388176.

The previous prime is 15631164547. The next prime is 15631164553. The reversal of 15631164552 is 25546113651.

It is a self number, because there is not a number n which added to its sum of digits gives 15631164552.

It is not an unprimeable number, because it can be changed into a prime (15631164553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325649238 + ... + 325649285.

It is an arithmetic number, because the mean of its divisors is an integer number (2442369465).

Almost surely, 2^15631164552 is an apocalyptic number.

15631164552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15631164552 is an abundant number, since it is smaller than the sum of its proper divisors (23446746888).

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

15631164552 is a wasteful number, since it uses less digits than its factorization.

15631164552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651298532 (or 651298528 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The spelling of 15631164552 in words is "fifteen billion, six hundred thirty-one million, one hundred sixty-four thousand, five hundred fifty-two".