22281275665 has 32 divisors (see below), whose sum is σ = 29878377984. Its totient is φ = 15812106240.

The previous prime is 22281275629. The next prime is 22281275669. The reversal of 22281275665 is 56657218222.

It is not a de Polignac number, because 22281275665 - 2⁹ = 22281275153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22281275669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858357 + ... + 883933.

It is an arithmetic number, because the mean of its divisors is an integer number (933699312).

Almost surely, 2^22281275665 is an apocalyptic number.

It is an amenable number.

22281275665 is a deficient number, since it is larger than the sum of its proper divisors (7597102319).

22281275665 is a wasteful number, since it uses less digits than its factorization.

22281275665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977.

The product of its digits is 806400, while the sum is 46.

The spelling of 22281275665 in words is "twenty-two billion, two hundred eighty-one million, two hundred seventy-five thousand, six hundred sixty-five".