215531450542332 has 36 divisors (see below), whose sum is σ = 546276242792280. Its totient is φ = 71651206073952.

The previous prime is 215531450542301. The next prime is 215531450542357. The reversal of 215531450542332 is 233245054135512.

215531450542332 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 31 + 45 + 0 + 542 + 3 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8025435282 + ... + 8025462137.

Almost surely, 2^{215531450542332} is an apocalyptic number.

It is an amenable number.

215531450542332 is an abundant number, since it is smaller than the sum of its proper divisors (330744792249948).

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

215531450542332 is a wasteful number, since it uses less digits than its factorization.

215531450542332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050897802 (or 16050897797 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 215531450542332 in words is "two hundred fifteen trillion, five hundred thirty-one billion, four hundred fifty million, five hundred forty-two thousand, three hundred thirty-two".