22511165057 has 2 divisors, whose sum is σ = 22511165058. Its totient is φ = 22511165056.

The previous prime is 22511165029. The next prime is 22511165129. The reversal of 22511165057 is 75056111522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18471799921 + 4039365136 = 135911^2 + 63556^2 .

It is a cyclic number.

It is not a de Polignac number, because 22511165057 - 2⁸ = 22511164801 is a prime.

It is not a weakly prime, because it can be changed into another prime (22511165657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11255582528 + 11255582529.

It is an arithmetic number, because the mean of its divisors is an integer number (11255582529).

Almost surely, 2^22511165057 is an apocalyptic number.

It is an amenable number.

22511165057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22511165057 is an equidigital number, since it uses as much as digits as its factorization.

22511165057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 35.

Adding to 22511165057 its reverse (75056111522), we get a palindrome (97567276579).

The spelling of 22511165057 in words is "twenty-two billion, five hundred eleven million, one hundred sixty-five thousand, fifty-seven".