220382931880 has 32 divisors (see below), whose sum is σ = 495981369000. Its totient is φ = 88131879936.

The previous prime is 220382931859. The next prime is 220382931893. The reversal of 220382931880 is 88139283022.

It can be written as a sum of positive squares in 4 ways, for example, as 53737730596 + 166645201284 = 231814^2 + 408222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220382931880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497205 + ... + 829444.

Almost surely, 2^220382931880 is an apocalyptic number.

220382931880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220382931880 is an abundant number, since it is smaller than the sum of its proper divisors (275598437120).

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

220382931880 is a wasteful number, since it uses less digits than its factorization.

220382931880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330813 (or 1330809 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 220382931880 in words is "two hundred twenty billion, three hundred eighty-two million, nine hundred thirty-one thousand, eight hundred eighty".