85059955995017 has 2 divisors, whose sum is σ = 85059955995018. Its totient is φ = 85059955995016.

The previous prime is 85059955995011. The next prime is 85059955995067. The reversal of 85059955995017 is 71059955995058.

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., 68623264295056 + 16436691699961 = 8283916^2 + 4054219^2 .

It is a cyclic number.

It is not a de Polignac number, because 85059955995017 - 2⁶ = 85059955994953 is a prime.

It is a super-2 number, since 2×85059955995017² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85059955995011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42529977997508 + 42529977997509.

It is an arithmetic number, because the mean of its divisors is an integer number (42529977997509).

Almost surely, 2^{85059955995017} is an apocalyptic number.

It is an amenable number.

85059955995017 is a deficient number, since it is larger than the sum of its proper divisors (1).

85059955995017 is an equidigital number, since it uses as much as digits as its factorization.

85059955995017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1148175000, while the sum is 77.

The spelling of 85059955995017 in words is "eighty-five trillion, fifty-nine billion, nine hundred fifty-five million, nine hundred ninety-five thousand, seventeen".