220320550215232 has 112 divisors (see below), whose sum is σ = 471116748985344. Its totient is φ = 101929817088000.

The previous prime is 220320550215191. The next prime is 220320550215253. The reversal of 220320550215232 is 232512055023022.

It is a super-2 number, since 2×220320550215232² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110398732 + ... + 112376692.

It is an arithmetic number, because the mean of its divisors is an integer number (4206399544512).

Almost surely, 2^{220320550215232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220320550215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235558374492672).

220320550215232 is an abundant number, since it is smaller than the sum of its proper divisors (250796198770112).

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

220320550215232 is a wasteful number, since it uses less digits than its factorization.

220320550215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980468 (or 1980458 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 220320550215232 in words is "two hundred twenty trillion, three hundred twenty billion, five hundred fifty million, two hundred fifteen thousand, two hundred thirty-two".