220155663 has 32 divisors (see below), whose sum is σ = 366263296. Its totient is φ = 114524928.

The previous prime is 220155653. The next prime is 220155667. The reversal of 220155663 is 366551022.

It is not a de Polignac number, because 220155663 - 2⁵ = 220155631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220155663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220155667) 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 31 ways as a sum of consecutive naturals, for example, 14406 + ... + 25452.

It is an arithmetic number, because the mean of its divisors is an integer number (11445728).

Almost surely, 2^220155663 is an apocalyptic number.

220155663 is a deficient number, since it is larger than the sum of its proper divisors (146107633).

220155663 is a wasteful number, since it uses less digits than its factorization.

220155663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 220155663 is about 14837.6434449679. The cubic root of 220155663 is about 603.8234201228.

The spelling of 220155663 in words is "two hundred twenty million, one hundred fifty-five thousand, six hundred sixty-three".