20525795922911 has 2 divisors, whose sum is σ = 20525795922912. Its totient is φ = 20525795922910.

The previous prime is 20525795922871. The next prime is 20525795922953. The reversal of 20525795922911 is 11922959752502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20525795922911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20525795922971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262897961455 + 10262897961456.

It is an arithmetic number, because the mean of its divisors is an integer number (10262897961456).

Almost surely, 2^{20525795922911} is an apocalyptic number.

20525795922911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525795922911 is an equidigital number, since it uses as much as digits as its factorization.

20525795922911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206000, while the sum is 59.

The spelling of 20525795922911 in words is "twenty trillion, five hundred twenty-five billion, seven hundred ninety-five million, nine hundred twenty-two thousand, nine hundred eleven".