215066255022 has 24 divisors (see below), whose sum is σ = 466222082040. Its totient is φ = 71651029200.

The previous prime is 215066255003. The next prime is 215066255071. The reversal of 215066255022 is 220552660512.

215066255022 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 6 + 625 + 5 + 0 + 22 = 666.

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, 3108372 + ... + 3176807.

It is an arithmetic number, because the mean of its divisors is an integer number (19425920085).

Almost surely, 2^215066255022 is an apocalyptic number.

215066255022 is an abundant number, since it is smaller than the sum of its proper divisors (251155827018).

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

215066255022 is a wasteful number, since it uses less digits than its factorization.

215066255022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287088 (or 6287085 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 215066255022 in words is "two hundred fifteen billion, sixty-six million, two hundred fifty-five thousand, twenty-two".