65190426167717 has 2 divisors, whose sum is σ = 65190426167718. Its totient is φ = 65190426167716.

The previous prime is 65190426167623. The next prime is 65190426167729. The reversal of 65190426167717 is 71776162409156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42509343766561 + 22681082401156 = 6519919^2 + 4762466^2 .

It is a cyclic number.

It is not a de Polignac number, because 65190426167717 - 2³⁴ = 65173246298533 is a prime.

It is a super-2 number, since 2×65190426167717² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65190426167717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65190426167777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32595213083858 + 32595213083859.

It is an arithmetic number, because the mean of its divisors is an integer number (32595213083859).

Almost surely, 2^{65190426167717} is an apocalyptic number.

It is an amenable number.

65190426167717 is a deficient number, since it is larger than the sum of its proper divisors (1).

65190426167717 is an equidigital number, since it uses as much as digits as its factorization.

65190426167717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26671680, while the sum is 62.

The spelling of 65190426167717 in words is "sixty-five trillion, one hundred ninety billion, four hundred twenty-six million, one hundred sixty-seven thousand, seven hundred seventeen".