65085717901 has 2 divisors, whose sum is σ = 65085717902. Its totient is φ = 65085717900.

The previous prime is 65085717877. The next prime is 65085717947. The reversal of 65085717901 is 10971758056.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52619772100 + 12465945801 = 229390^2 + 111651^2 .

It is a cyclic number.

It is not a de Polignac number, because 65085717901 - 2⁵ = 65085717869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65085717601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32542858950 + 32542858951.

It is an arithmetic number, because the mean of its divisors is an integer number (32542858951).

Almost surely, 2^65085717901 is an apocalyptic number.

It is an amenable number.

65085717901 is a deficient number, since it is larger than the sum of its proper divisors (1).

65085717901 is an equidigital number, since it uses as much as digits as its factorization.

65085717901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 65085717901 in words is "sixty-five billion, eighty-five million, seven hundred seventeen thousand, nine hundred one".