22645710173 has 2 divisors, whose sum is σ = 22645710174. Its totient is φ = 22645710172.

The previous prime is 22645710169. The next prime is 22645710193. The reversal of 22645710173 is 37101754622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15349475449 + 7296234724 = 123893^2 + 85418^2 .

It is a cyclic number.

It is not a de Polignac number, because 22645710173 - 2² = 22645710169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22645710193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322855086 + 11322855087.

It is an arithmetic number, because the mean of its divisors is an integer number (11322855087).

Almost surely, 2^22645710173 is an apocalyptic number.

It is an amenable number.

22645710173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22645710173 is an equidigital number, since it uses as much as digits as its factorization.

22645710173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 22645710173 in words is "twenty-two billion, six hundred forty-five million, seven hundred ten thousand, one hundred seventy-three".