220663630 has 16 divisors (see below), whose sum is σ = 433303344. Its totient is φ = 80241280.

The previous prime is 220663627. The next prime is 220663661. The reversal of 220663630 is 36366022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002907 + ... + 1003126.

It is an arithmetic number, because the mean of its divisors is an integer number (27081459).

Almost surely, 2^220663630 is an apocalyptic number.

220663630 is a deficient number, since it is larger than the sum of its proper divisors (212639714).

220663630 is a wasteful number, since it uses less digits than its factorization.

220663630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006051.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 220663630 is about 14854.7510918224. The cubic root of 220663630 is about 604.2874656803.

The spelling of 220663630 in words is "two hundred twenty million, six hundred sixty-three thousand, six hundred thirty".