22664569 has 8 divisors (see below), whose sum is σ = 23320352. Its totient is φ = 22014720.

The previous prime is 22664567. The next prime is 22664623. The reversal of 22664569 is 96546622.

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 22664569 - 2¹ = 22664567 is a prime.

It is a super-2 number, since 2×22664569² = 1027365375911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22664567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6934 + ... + 9664.

It is an arithmetic number, because the mean of its divisors is an integer number (2915044).

Almost surely, 2^22664569 is an apocalyptic number.

It is an amenable number.

22664569 is a deficient number, since it is larger than the sum of its proper divisors (655783).

22664569 is a wasteful number, since it uses less digits than its factorization.

22664569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967.

The product of its digits is 155520, while the sum is 40.

The square root of 22664569 is about 4760.7319815339. The cubic root of 22664569 is about 282.9974278381.

The spelling of 22664569 in words is "twenty-two million, six hundred sixty-four thousand, five hundred sixty-nine".