22645111157 has 2 divisors, whose sum is σ = 22645111158. Its totient is φ = 22645111156.

The previous prime is 22645111079. The next prime is 22645111169. The reversal of 22645111157 is 75111154622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20221124401 + 2423986756 = 142201^2 + 49234^2 .

It is a cyclic number.

It is not a de Polignac number, because 22645111157 - 2¹² = 22645107061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22645111057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322555578 + 11322555579.

It is an arithmetic number, because the mean of its divisors is an integer number (11322555579).

Almost surely, 2^22645111157 is an apocalyptic number.

It is an amenable number.

22645111157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22645111157 is an equidigital number, since it uses as much as digits as its factorization.

22645111157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 35.

Adding to 22645111157 its reverse (75111154622), we get a palindrome (97756265779).

The spelling of 22645111157 in words is "twenty-two billion, six hundred forty-five million, one hundred eleven thousand, one hundred fifty-seven".