220562661 has 32 divisors (see below), whose sum is σ = 340905600. Its totient is φ = 125556480.

The previous prime is 220562653. The next prime is 220562701. The reversal of 220562661 is 166265022.

It is not a de Polignac number, because 220562661 - 2³ = 220562653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220562651) 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, 32295 + ... + 38523.

It is an arithmetic number, because the mean of its divisors is an integer number (10653300).

Almost surely, 2^220562661 is an apocalyptic number.

It is an amenable number.

220562661 is a deficient number, since it is larger than the sum of its proper divisors (120342939).

220562661 is a wasteful number, since it uses less digits than its factorization.

220562661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 220562661 is about 14851.3521606620. The cubic root of 220562661 is about 604.1952837326.

The spelling of 220562661 in words is "two hundred twenty million, five hundred sixty-two thousand, six hundred sixty-one".