220003831656 has 48 divisors (see below), whose sum is σ = 680964242400. Its totient is φ = 62858237472.

The previous prime is 220003831631. The next prime is 220003831669. The reversal of 220003831656 is 656138300022.

It is a happy number.

220003831656 is a `hidden beast` number, since 220 + 0 + 0 + 383 + 1 + 6 + 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 220003831656.

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, 218257266 + ... + 218258273.

It is an arithmetic number, because the mean of its divisors is an integer number (14186755050).

Almost surely, 2^220003831656 is an apocalyptic number.

It is an amenable number.

220003831656 is an abundant number, since it is smaller than the sum of its proper divisors (460960410744).

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

220003831656 is a wasteful number, since it uses less digits than its factorization.

220003831656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436515558 (or 436515551 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 220003831656 in words is "two hundred twenty billion, three million, eight hundred thirty-one thousand, six hundred fifty-six".