220563916 has 12 divisors (see below), whose sum is σ = 408692088. Its totient is φ = 103794752.

The previous prime is 220563907. The next prime is 220563943. The reversal of 220563916 is 619365022.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1621726 + ... + 1621861.

It is an arithmetic number, because the mean of its divisors is an integer number (34057674).

Almost surely, 2^220563916 is an apocalyptic number.

It is an amenable number.

220563916 is a deficient number, since it is larger than the sum of its proper divisors (188128172).

220563916 is a wasteful number, since it uses less digits than its factorization.

220563916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243608 (or 3243606 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 220563916 is about 14851.3944126469. The cubic root of 220563916 is about 604.1964296861.

The spelling of 220563916 in words is "two hundred twenty million, five hundred sixty-three thousand, nine hundred sixteen".