22665318375 has 128 divisors (see below), whose sum is σ = 45528956928. Its totient is φ = 9789225600.

The previous prime is 22665318371. The next prime is 22665318383. The reversal of 22665318375 is 57381356622.

It is a happy number.

It is not a de Polignac number, because 22665318375 - 2² = 22665318371 is a prime.

It is a super-2 number, since 2×22665318375² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22665318371) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5008864 + ... + 5013386.

It is an arithmetic number, because the mean of its divisors is an integer number (355694976).

Almost surely, 2^22665318375 is an apocalyptic number.

22665318375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22665318375 is an abundant number, since it is smaller than the sum of its proper divisors (22863638553).

22665318375 is a wasteful number, since it uses less digits than its factorization.

22665318375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654 (or 4644 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 22665318375 in words is "twenty-two billion, six hundred sixty-five million, three hundred eighteen thousand, three hundred seventy-five".