159987249252 has 24 divisors (see below), whose sum is σ = 414781757600. Its totient is φ = 53329083048.

The previous prime is 159987249221. The next prime is 159987249319. The reversal of 159987249252 is 252942789951.

159987249252 is a `hidden beast` number, since 1 + 5 + 9 + 98 + 7 + 2 + 492 + 52 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 159987249252.

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, 740681602 + ... + 740681817.

Almost surely, 2^159987249252 is an apocalyptic number.

159987249252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159987249252 is an abundant number, since it is smaller than the sum of its proper divisors (254794508348).

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

159987249252 is a wasteful number, since it uses less digits than its factorization.

159987249252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481363432 (or 1481363424 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 159987249252 in words is "one hundred fifty-nine billion, nine hundred eighty-seven million, two hundred forty-nine thousand, two hundred fifty-two".