22166130169 has 2 divisors, whose sum is σ = 22166130170. Its totient is φ = 22166130168.

The previous prime is 22166130143. The next prime is 22166130191. The reversal of 22166130169 is 96103166122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20723042025 + 1443088144 = 143955^2 + 37988^2 .

It is a cyclic number.

It is not a de Polignac number, because 22166130169 - 2⁵ = 22166130137 is a prime.

It is a super-2 number, since 2×22166130169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22166130109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11083065084 + 11083065085.

It is an arithmetic number, because the mean of its divisors is an integer number (11083065085).

Almost surely, 2^22166130169 is an apocalyptic number.

It is an amenable number.

22166130169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22166130169 is an equidigital number, since it uses as much as digits as its factorization.

22166130169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 22166130169 in words is "twenty-two billion, one hundred sixty-six million, one hundred thirty thousand, one hundred sixty-nine".