22664659 has 2 divisors, whose sum is σ = 22664660. Its totient is φ = 22664658.

The previous prime is 22664641. The next prime is 22664671. The reversal of 22664659 is 95646622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22664659 - 2⁷ = 22664531 is a prime.

It is not a weakly prime, because it can be changed into another prime (22664699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332329 + 11332330.

It is an arithmetic number, because the mean of its divisors is an integer number (11332330).

Almost surely, 2^22664659 is an apocalyptic number.

22664659 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664659 is an equidigital number, since it uses as much as digits as its factorization.

22664659 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22664659 is about 4760.7414338525. The cubic root of 22664659 is about 282.9978024277.

The spelling of 22664659 in words is "twenty-two million, six hundred sixty-four thousand, six hundred fifty-nine".