220166056 has 32 divisors (see below), whose sum is σ = 453132000. Its totient is φ = 99455040.

The previous prime is 220166039. The next prime is 220166059. The reversal of 220166056 is 650661022.

It is not an unprimeable number, because it can be changed into a prime (220166059) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6670 + ... + 22018.

It is an arithmetic number, because the mean of its divisors is an integer number (14160375).

Almost surely, 2^220166056 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 220166056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226566000).

220166056 is an abundant number, since it is smaller than the sum of its proper divisors (232965944).

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

220166056 is a wasteful number, since it uses less digits than its factorization.

220166056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529 (or 15525 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 220166056 is about 14837.9936649131. The cubic root of 220166056 is about 603.8329216394.

The spelling of 220166056 in words is "two hundred twenty million, one hundred sixty-six thousand, fifty-six".