22465665 has 24 divisors (see below), whose sum is σ = 39257088. Its totient is φ = 11884320.

The previous prime is 22465661. The next prime is 22465673. The reversal of 22465665 is 56656422.

It is not a de Polignac number, because 22465665 - 2² = 22465661 is a prime.

It is a super-2 number, since 2×22465665² = 1009412207784450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22465661) 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 23 ways as a sum of consecutive naturals, for example, 3750 + ... + 7680.

It is an arithmetic number, because the mean of its divisors is an integer number (1635712).

Almost surely, 2^22465665 is an apocalyptic number.

It is an amenable number.

22465665 is a deficient number, since it is larger than the sum of its proper divisors (16791423).

22465665 is a wasteful number, since it uses less digits than its factorization.

22465665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069 (or 4066 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 22465665 is about 4739.7958816810. The cubic root of 22465665 is about 282.1671334587.

The spelling of 22465665 in words is "twenty-two million, four hundred sixty-five thousand, six hundred sixty-five".