20598168713 has 2 divisors, whose sum is σ = 20598168714. Its totient is φ = 20598168712.

The previous prime is 20598168649. The next prime is 20598168733. The reversal of 20598168713 is 31786189502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14154574729 + 6443593984 = 118973^2 + 80272^2 .

It is a cyclic number.

It is not a de Polignac number, because 20598168713 - 2⁶ = 20598168649 is a prime.

It is not a weakly prime, because it can be changed into another prime (20598168733) 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, 10299084356 + 10299084357.

It is an arithmetic number, because the mean of its divisors is an integer number (10299084357).

Almost surely, 2^20598168713 is an apocalyptic number.

It is an amenable number.

20598168713 is a deficient number, since it is larger than the sum of its proper divisors (1).

20598168713 is an equidigital number, since it uses as much as digits as its factorization.

20598168713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 20598168713 in words is "twenty billion, five hundred ninety-eight million, one hundred sixty-eight thousand, seven hundred thirteen".