20622057166129 has 2 divisors, whose sum is σ = 20622057166130. Its totient is φ = 20622057166128.

The previous prime is 20622057166069. The next prime is 20622057166153. The reversal of 20622057166129 is 92166175022602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18162743197729 + 2459313968400 = 4261777^2 + 1568220^2 .

It is a cyclic number.

It is not a de Polignac number, because 20622057166129 - 2⁷ = 20622057166001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20622057160129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311028583064 + 10311028583065.

It is an arithmetic number, because the mean of its divisors is an integer number (10311028583065).

Almost surely, 2^{20622057166129} is an apocalyptic number.

It is an amenable number.

20622057166129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622057166129 is an equidigital number, since it uses as much as digits as its factorization.

20622057166129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 20622057166129 in words is "twenty trillion, six hundred twenty-two billion, fifty-seven million, one hundred sixty-six thousand, one hundred twenty-nine".