220456017920 has 112 divisors (see below), whose sum is σ = 530665291728. Its totient is φ = 87915233280.

The previous prime is 220456017877. The next prime is 220456017973. The reversal of 220456017920 is 29710654022.

It is a super-2 number, since 2×220456017920² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 13795535 + ... + 13811505.

Almost surely, 2^220456017920 is an apocalyptic number.

220456017920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220456017920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265332645864).

220456017920 is an abundant number, since it is smaller than the sum of its proper divisors (310209273808).

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

220456017920 is an equidigital number, since it uses as much as digits as its factorization.

220456017920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16339 (or 16315 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 220456017920 in words is "two hundred twenty billion, four hundred fifty-six million, seventeen thousand, nine hundred twenty".