85166672167013 has 2 divisors, whose sum is σ = 85166672167014. Its totient is φ = 85166672167012.

The previous prime is 85166672166973. The next prime is 85166672167067. The reversal of 85166672167013 is 31076127666158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82004652032164 + 3162020134849 = 9055642^2 + 1778207^2 .

It is a cyclic number.

It is not a de Polignac number, because 85166672167013 - 2¹⁰ = 85166672165989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85166672167613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42583336083506 + 42583336083507.

It is an arithmetic number, because the mean of its divisors is an integer number (42583336083507).

Almost surely, 2^{85166672167013} is an apocalyptic number.

It is an amenable number.

85166672167013 is a deficient number, since it is larger than the sum of its proper divisors (1).

85166672167013 is an equidigital number, since it uses as much as digits as its factorization.

85166672167013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 85166672167013 in words is "eighty-five trillion, one hundred sixty-six billion, six hundred seventy-two million, one hundred sixty-seven thousand, thirteen".