22655665 has 8 divisors (see below), whose sum is σ = 27224640. Its totient is φ = 18099312.

The previous prime is 22655663. The next prime is 22655671. The reversal of 22655665 is 56655622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22655665 - 2¹ = 22655663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22655663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396 + ... + 6874.

It is an arithmetic number, because the mean of its divisors is an integer number (3403080).

Almost surely, 2^22655665 is an apocalyptic number.

It is an amenable number.

22655665 is a deficient number, since it is larger than the sum of its proper divisors (4568975).

22655665 is an equidigital number, since it uses as much as digits as its factorization.

22655665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its digits is 108000, while the sum is 37.

The square root of 22655665 is about 4759.7967393577. The cubic root of 22655665 is about 282.9603635382.

The spelling of 22655665 in words is "twenty-two million, six hundred fifty-five thousand, six hundred sixty-five".