22045165049 has 2 divisors, whose sum is σ = 22045165050. Its totient is φ = 22045165048.

The previous prime is 22045165019. The next prime is 22045165057. The reversal of 22045165049 is 94056154022.

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., 22042747024 + 2418025 = 148468^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 22045165049 - 2²⁰ = 22044116473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22045165019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022582524 + 11022582525.

It is an arithmetic number, because the mean of its divisors is an integer number (11022582525).

Almost surely, 2^22045165049 is an apocalyptic number.

It is an amenable number.

22045165049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22045165049 is an equidigital number, since it uses as much as digits as its factorization.

22045165049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 22045165049 in words is "twenty-two billion, forty-five million, one hundred sixty-five thousand, forty-nine".