215605223992 has 64 divisors (see below), whose sum is σ = 437642215200. Its totient is φ = 99231091200.

The previous prime is 215605223989. The next prime is 215605223993. The reversal of 215605223992 is 299322506512.

It is a super-2 number, since 2×215605223992² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215605223993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4096242 + ... + 4148542.

Almost surely, 2^215605223992 is an apocalyptic number.

It is an amenable number.

215605223992 is an abundant number, since it is smaller than the sum of its proper divisors (222036991208).

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

215605223992 is a wasteful number, since it uses less digits than its factorization.

215605223992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53096 (or 53092 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 215605223992 in words is "two hundred fifteen billion, six hundred five million, two hundred twenty-three thousand, nine hundred ninety-two".