22405315223957 has 2 divisors, whose sum is σ = 22405315223958. Its totient is φ = 22405315223956.

The previous prime is 22405315223939. The next prime is 22405315224041. The reversal of 22405315223957 is 75932251350422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13101113246116 + 9304201977841 = 3619546^2 + 3050279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22405315223957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22405315223257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202657611978 + 11202657611979.

It is an arithmetic number, because the mean of its divisors is an integer number (11202657611979).

Almost surely, 2^{22405315223957} is an apocalyptic number.

It is an amenable number.

22405315223957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22405315223957 is an equidigital number, since it uses as much as digits as its factorization.

22405315223957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 22405315223957 in words is "twenty-two trillion, four hundred five billion, three hundred fifteen million, two hundred twenty-three thousand, nine hundred fifty-seven".