65120601001717 has 2 divisors, whose sum is σ = 65120601001718. Its totient is φ = 65120601001716.

The previous prime is 65120601001649. The next prime is 65120601001721. The reversal of 65120601001717 is 71710010602156.

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., 56644153065361 + 8476447936356 = 7526231^2 + 2911434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65120601001717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65120601001217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32560300500858 + 32560300500859.

It is an arithmetic number, because the mean of its divisors is an integer number (32560300500859).

Almost surely, 2^{65120601001717} is an apocalyptic number.

It is an amenable number.

65120601001717 is a deficient number, since it is larger than the sum of its proper divisors (1).

65120601001717 is an equidigital number, since it uses as much as digits as its factorization.

65120601001717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 65120601001717 in words is "sixty-five trillion, one hundred twenty billion, six hundred one million, one thousand, seven hundred seventeen".