215555054445532 has 12 divisors (see below), whose sum is σ = 378786579079216. Its totient is φ = 107330317565760.

The previous prime is 215555054445509. The next prime is 215555054445763. The reversal of 215555054445532 is 235544450555512.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111802413168 + ... + 111802415095.

Almost surely, 2^{215555054445532} is an apocalyptic number.

It is an amenable number.

215555054445532 is a deficient number, since it is larger than the sum of its proper divisors (163231524633684).

215555054445532 is a wasteful number, since it uses less digits than its factorization.

215555054445532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223604828508 (or 223604828506 counting only the distinct ones).

The product of its (nonzero) digits is 60000000, while the sum is 55.

The spelling of 215555054445532 in words is "two hundred fifteen trillion, five hundred fifty-five billion, fifty-four million, four hundred forty-five thousand, five hundred thirty-two".