315222155532 has 18 divisors (see below), whose sum is σ = 796811559908. Its totient is φ = 105074051832.

The previous prime is 315222155491. The next prime is 315222155543. The reversal of 315222155532 is 235551222513.

315222155532 is a `hidden beast` number, since 3 + 1 + 52 + 2 + 21 + 55 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8756170987 = 315222155532 / (3 + 1 + 5 + 2 + 2 + 2 + 1 + 5 + 5 + 5 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4378085458 + ... + 4378085529.

Almost surely, 2^315222155532 is an apocalyptic number.

It is an amenable number.

315222155532 is an abundant number, since it is smaller than the sum of its proper divisors (481589404376).

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

315222155532 is a wasteful number, since it uses less digits than its factorization.

315222155532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756170997 (or 8756170992 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 315222155532 in words is "three hundred fifteen billion, two hundred twenty-two million, one hundred fifty-five thousand, five hundred thirty-two".