220209168 has 40 divisors (see below), whose sum is σ = 577372768. Its totient is φ = 72306432.

The previous prime is 220209139. The next prime is 220209169. The reversal of 220209168 is 861902022.

It is not an unprimeable number, because it can be changed into a prime (220209169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31021 + ... + 37452.

Almost surely, 2^220209168 is an apocalyptic number.

It is an amenable number.

220209168 is an abundant number, since it is smaller than the sum of its proper divisors (357163600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220209168 is a wasteful number, since it uses less digits than its factorization.

220209168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68551 (or 68545 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 220209168 is about 14839.4463508582. The cubic root of 220209168 is about 603.8723324162.

The spelling of 220209168 in words is "two hundred twenty million, two hundred nine thousand, one hundred sixty-eight".