22742136169 has 2 divisors, whose sum is σ = 22742136170. Its totient is φ = 22742136168.

The previous prime is 22742136119. The next prime is 22742136229. The reversal of 22742136169 is 96163124722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16016168025 + 6725968144 = 126555^2 + 82012^2 .

It is a cyclic number.

It is not a de Polignac number, because 22742136169 - 2²⁵ = 22708581737 is a prime.

It is a super-2 number, since 2×22742136169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22742136119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11371068084 + 11371068085.

It is an arithmetic number, because the mean of its divisors is an integer number (11371068085).

Almost surely, 2^22742136169 is an apocalyptic number.

It is an amenable number.

22742136169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22742136169 is an equidigital number, since it uses as much as digits as its factorization.

22742136169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The spelling of 22742136169 in words is "twenty-two billion, seven hundred forty-two million, one hundred thirty-six thousand, one hundred sixty-nine".