22663168 has 52 divisors (see below), whose sum is σ = 49539168. Its totient is φ = 10280960.

The previous prime is 22663163. The next prime is 22663189. The reversal of 22663168 is 86136622.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22663163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44805 + ... + 45307.

Almost surely, 2^22663168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22663168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24769584).

22663168 is an abundant number, since it is smaller than the sum of its proper divisors (26876000).

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

22663168 is an equidigital number, since it uses as much as digits as its factorization.

22663168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 516 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 22663168 is about 4760.5848380215. The cubic root of 22663168 is about 282.9915965990.

The spelling of 22663168 in words is "twenty-two million, six hundred sixty-three thousand, one hundred sixty-eight".