22626516161 has 2 divisors, whose sum is σ = 22626516162. Its totient is φ = 22626516160.

The previous prime is 22626516151. The next prime is 22626516169. The reversal of 22626516161 is 16161562622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18995730625 + 3630785536 = 137825^2 + 60256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22626516161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22626516169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11313258080 + 11313258081.

It is an arithmetic number, because the mean of its divisors is an integer number (11313258081).

Almost surely, 2^22626516161 is an apocalyptic number.

It is an amenable number.

22626516161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22626516161 is an equidigital number, since it uses as much as digits as its factorization.

22626516161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The spelling of 22626516161 in words is "twenty-two billion, six hundred twenty-six million, five hundred sixteen thousand, one hundred sixty-one".