85490105161 has 16 divisors (see below), whose sum is σ = 91212690240. Its totient is φ = 79892809920.

The previous prime is 85490105143. The next prime is 85490105167. The reversal of 85490105161 is 16150109458.

It is a cyclic number.

It is not a de Polignac number, because 85490105161 - 2¹³ = 85490096969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85490105167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001391 + ... + 1083403.

It is an arithmetic number, because the mean of its divisors is an integer number (5700793140).

Almost surely, 2^85490105161 is an apocalyptic number.

It is an amenable number.

85490105161 is a deficient number, since it is larger than the sum of its proper divisors (5722585079).

85490105161 is a wasteful number, since it uses less digits than its factorization.

85490105161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82776.

The product of its (nonzero) digits is 43200, while the sum is 40.

The spelling of 85490105161 in words is "eighty-five billion, four hundred ninety million, one hundred five thousand, one hundred sixty-one".