22665960 has 128 divisors (see below), whose sum is σ = 78105600. Its totient is φ = 5840640.

The previous prime is 22665919. The next prime is 22665961. The reversal of 22665960 is 6956622.

22665960 is a `hidden beast` number, since 2 + 2 + 66 + 596 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22665961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33142 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (610200).

Almost surely, 2^22665960 is an apocalyptic number.

22665960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22665960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39052800).

22665960 is an abundant number, since it is smaller than the sum of its proper divisors (55439640).

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

22665960 is a wasteful number, since it uses less digits than its factorization.

22665960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 22665960 is about 4760.8780702723. The cubic root of 22665960 is about 283.0032172176.

The spelling of 22665960 in words is "twenty-two million, six hundred sixty-five thousand, nine hundred sixty".