215322132556 has 12 divisors (see below), whose sum is σ = 381047594760. Its totient is φ = 106451391200.

The previous prime is 215322132517. The next prime is 215322132577. The reversal of 215322132556 is 655231223512.

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, 302418370 + ... + 302419081.

It is an arithmetic number, because the mean of its divisors is an integer number (31753966230).

Almost surely, 2^215322132556 is an apocalyptic number.

It is an amenable number.

215322132556 is a deficient number, since it is larger than the sum of its proper divisors (165725462204).

215322132556 is a wasteful number, since it uses less digits than its factorization.

215322132556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604837544 (or 604837542 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The spelling of 215322132556 in words is "two hundred fifteen billion, three hundred twenty-two million, one hundred thirty-two thousand, five hundred fifty-six".