220166623361220 has 96 divisors (see below), whose sum is σ = 616653798015360. Its totient is φ = 58693268874240.

The previous prime is 220166623361149. The next prime is 220166623361273. The reversal of 220166623361220 is 22163326661022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2880178200 + ... + 2880254640.

It is an arithmetic number, because the mean of its divisors is an integer number (6423477062660).

Almost surely, 2^{220166623361220} is an apocalyptic number.

220166623361220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220166623361220 is an abundant number, since it is smaller than the sum of its proper divisors (396487174654140).

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

220166623361220 is a wasteful number, since it uses less digits than its factorization.

220166623361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90405 (or 90403 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 220166623361220 in words is "two hundred twenty trillion, one hundred sixty-six billion, six hundred twenty-three million, three hundred sixty-one thousand, two hundred twenty".