65654969393017 has 2 divisors, whose sum is σ = 65654969393018. Its totient is φ = 65654969393016.

The previous prime is 65654969392931. The next prime is 65654969393071. The reversal of 65654969393017 is 71039396945656.

Together with next prime (65654969393071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64682465736681 + 972503656336 = 8042541^2 + 986156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65654969393017 is a prime.

It is not a weakly prime, because it can be changed into another prime (65654969396017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32827484696508 + 32827484696509.

It is an arithmetic number, because the mean of its divisors is an integer number (32827484696509).

Almost surely, 2^{65654969393017} is an apocalyptic number.

It is an amenable number.

65654969393017 is a deficient number, since it is larger than the sum of its proper divisors (1).

65654969393017 is an equidigital number, since it uses as much as digits as its factorization.

65654969393017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 992023200, while the sum is 73.

The spelling of 65654969393017 in words is "sixty-five trillion, six hundred fifty-four billion, nine hundred sixty-nine million, three hundred ninety-three thousand, seventeen".