22168664 has 32 divisors (see below), whose sum is σ = 48115200. Its totient is φ = 9378720.

The previous prime is 22168651. The next prime is 22168669. The reversal of 22168664 is 46686122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22168669) 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, 1919 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (1503600).

Almost surely, 2^22168664 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 22168664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24057600).

22168664 is an abundant number, since it is smaller than the sum of its proper divisors (25946536).

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

22168664 is a wasteful number, since it uses less digits than its factorization.

22168664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103 (or 5099 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 22168664 is about 4708.3610736646. The cubic root of 22168664 is about 280.9181763004.

The spelling of 22168664 in words is "twenty-two million, one hundred sixty-eight thousand, six hundred sixty-four".