22645117357 has 2 divisors, whose sum is σ = 22645117358. Its totient is φ = 22645117356.

The previous prime is 22645117247. The next prime is 22645117361. The reversal of 22645117357 is 75371154622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13853054601 + 8792062756 = 117699^2 + 93766^2 .

It is a cyclic number.

It is not a de Polignac number, because 22645117357 - 2²³ = 22636728749 is a prime.

It is a super-2 number, since 2×22645117357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22645517357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322558678 + 11322558679.

It is an arithmetic number, because the mean of its divisors is an integer number (11322558679).

Almost surely, 2^22645117357 is an apocalyptic number.

It is an amenable number.

22645117357 is a deficient number, since it is larger than the sum of its proper divisors (1).

22645117357 is an equidigital number, since it uses as much as digits as its factorization.

22645117357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The spelling of 22645117357 in words is "twenty-two billion, six hundred forty-five million, one hundred seventeen thousand, three hundred fifty-seven".