22563436157 has 2 divisors, whose sum is σ = 22563436158. Its totient is φ = 22563436156.

The previous prime is 22563436141. The next prime is 22563436169. The reversal of 22563436157 is 75163436522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22438242436 + 125193721 = 149794^2 + 11189^2 .

It is a cyclic number.

It is not a de Polignac number, because 22563436157 - 2⁴ = 22563436141 is a prime.

It is a super-2 number, since 2×22563436157² (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 (22563436127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11281718078 + 11281718079.

It is an arithmetic number, because the mean of its divisors is an integer number (11281718079).

Almost surely, 2^22563436157 is an apocalyptic number.

It is an amenable number.

22563436157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22563436157 is an equidigital number, since it uses as much as digits as its factorization.

22563436157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 44.

The spelling of 22563436157 in words is "twenty-two billion, five hundred sixty-three million, four hundred thirty-six thousand, one hundred fifty-seven".