65500516515769 has 2 divisors, whose sum is σ = 65500516515770. Its totient is φ = 65500516515768.

The previous prime is 65500516515701. The next prime is 65500516515779. The reversal of 65500516515769 is 96751561500556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65488556250000 + 11960265769 = 8092500^2 + 109363^2 .

It is a cyclic number.

It is not a de Polignac number, because 65500516515769 - 2⁷ = 65500516515641 is a prime.

It is a super-2 number, since 2×65500516515769² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65500516515779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750258257884 + 32750258257885.

It is an arithmetic number, because the mean of its divisors is an integer number (32750258257885).

Almost surely, 2^{65500516515769} is an apocalyptic number.

It is an amenable number.

65500516515769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500516515769 is an equidigital number, since it uses as much as digits as its factorization.

65500516515769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42525000, while the sum is 61.

The spelling of 65500516515769 in words is "sixty-five trillion, five hundred billion, five hundred sixteen million, five hundred fifteen thousand, seven hundred sixty-nine".