22665257232 has 80 divisors (see below), whose sum is σ = 60048656640. Its totient is φ = 7362380800.

The previous prime is 22665257231. The next prime is 22665257249. The reversal of 22665257232 is 23275256622.

It is not an unprimeable number, because it can be changed into a prime (22665257231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1845769 + ... + 1858007.

It is an arithmetic number, because the mean of its divisors is an integer number (750608208).

Almost surely, 2^22665257232 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 22665257232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30024328320).

22665257232 is an abundant number, since it is smaller than the sum of its proper divisors (37383399408).

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

22665257232 is a wasteful number, since it uses less digits than its factorization.

22665257232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232 (or 13226 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The spelling of 22665257232 in words is "twenty-two billion, six hundred sixty-five million, two hundred fifty-seven thousand, two hundred thirty-two".