220166244 has 27 divisors (see below), whose sum is σ = 556756473. Its totient is φ = 73359072.

The previous prime is 220166239. The next prime is 220166251. The reversal of 220166244 is 442661022.

The square root of 220166244 is 14838.

It is a perfect power (a square), and thus also a powerful number.

220166244 is a `hidden beast` number, since 2 + 20 + 16 + 624 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164096100 + 56070144 = 12810^2 + 7488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 87792 + ... + 90264.

Almost surely, 2^220166244 is an apocalyptic number.

220166244 is the 14838-th square number.

It is an amenable number.

220166244 is an abundant number, since it is smaller than the sum of its proper divisors (336590229).

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

220166244 is an equidigital number, since it uses as much as digits as its factorization.

220166244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 2478 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The cubic root of 220166244 is about 603.8330935105.

It can be divided in two parts, 220 and 166244, that added together give a square (166464 = 408²).

The spelling of 220166244 in words is "two hundred twenty million, one hundred sixty-six thousand, two hundred forty-four".