65654969396017 has 2 divisors, whose sum is σ = 65654969396018. Its totient is φ = 65654969396016.

The previous prime is 65654969395943. The next prime is 65654969396111. The reversal of 65654969396017 is 71069396945656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38602810429456 + 27052158966561 = 6213116^2 + 5201169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65654969396017 is a prime.

It is not a weakly prime, because it can be changed into another prime (65654969393017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32827484698008 + 32827484698009.

It is an arithmetic number, because the mean of its divisors is an integer number (32827484698009).

Almost surely, 2^{65654969396017} is an apocalyptic number.

It is an amenable number.

65654969396017 is a deficient number, since it is larger than the sum of its proper divisors (1).

65654969396017 is an equidigital number, since it uses as much as digits as its factorization.

65654969396017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1984046400, while the sum is 76.

The spelling of 65654969396017 in words is "sixty-five trillion, six hundred fifty-four billion, nine hundred sixty-nine million, three hundred ninety-six thousand, seventeen".