220540615056 has 80 divisors (see below), whose sum is σ = 633148523520. Its totient is φ = 73500151680.

The previous prime is 220540615027. The next prime is 220540615063. The reversal of 220540615056 is 650516045022.

220540615056 is a `hidden beast` number, since 2 + 2 + 0 + 540 + 61 + 5 + 0 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 220540615056.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488401 + ... + 2575503.

It is an arithmetic number, because the mean of its divisors is an integer number (7914356544).

Almost surely, 2^220540615056 is an apocalyptic number.

It is an amenable number.

220540615056 is an abundant number, since it is smaller than the sum of its proper divisors (412607908464).

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

220540615056 is a wasteful number, since it uses less digits than its factorization.

220540615056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92981 (or 92969 counting only the distinct ones).

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

The spelling of 220540615056 in words is "two hundred twenty billion, five hundred forty million, six hundred fifteen thousand, fifty-six".