220580165 has 32 divisors (see below), whose sum is σ = 294368256. Its totient is φ = 157651200.

The previous prime is 220580161. The next prime is 220580201. The reversal of 220580165 is 561085022.

It is not a de Polignac number, because 220580165 - 2² = 220580161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220580161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314315 + ... + 315015.

It is an arithmetic number, because the mean of its divisors is an integer number (9199008).

Almost surely, 2^220580165 is an apocalyptic number.

It is an amenable number.

220580165 is a deficient number, since it is larger than the sum of its proper divisors (73788091).

220580165 is a wasteful number, since it uses less digits than its factorization.

220580165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 220580165 is about 14851.9414555808. The cubic root of 220580165 is about 604.2112664235.

The spelling of 220580165 in words is "two hundred twenty million, five hundred eighty thousand, one hundred sixty-five".