215648283228912 has 120 divisors (see below), whose sum is σ = 620493064027200. Its totient is φ = 69881170229760.

The previous prime is 215648283228827. The next prime is 215648283228941. The reversal of 215648283228912 is 219822382846512.

215648283228912 is a `hidden beast` number, since 2 + 1 + 5 + 6 + 48 + 283 + 228 + 91 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 215648283228912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105914139 + ... + 107931002.

It is an arithmetic number, because the mean of its divisors is an integer number (5170775533560).

Almost surely, 2^{215648283228912} is an apocalyptic number.

It is an amenable number.

215648283228912 is an abundant number, since it is smaller than the sum of its proper divisors (404844780798288).

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

215648283228912 is a wasteful number, since it uses less digits than its factorization.

215648283228912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213845351 (or 213845342 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 215648283228912 in words is "two hundred fifteen trillion, six hundred forty-eight billion, two hundred eighty-three million, two hundred twenty-eight thousand, nine hundred twelve".