85161466141 has 2 divisors, whose sum is σ = 85161466142. Its totient is φ = 85161466140.

The previous prime is 85161466127. The next prime is 85161466177. The reversal of 85161466141 is 14166416158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82501072900 + 2660393241 = 287230^2 + 51579^2 .

It is a cyclic number.

It is not a de Polignac number, because 85161466141 - 2¹³ = 85161457949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85161466121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42580733070 + 42580733071.

It is an arithmetic number, because the mean of its divisors is an integer number (42580733071).

Almost surely, 2^85161466141 is an apocalyptic number.

It is an amenable number.

85161466141 is a deficient number, since it is larger than the sum of its proper divisors (1).

85161466141 is an equidigital number, since it uses as much as digits as its factorization.

85161466141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 43.

The spelling of 85161466141 in words is "eighty-five billion, one hundred sixty-one million, four hundred sixty-six thousand, one hundred forty-one".