85594478164 has 24 divisors (see below), whose sum is σ = 161714985768. Its totient is φ = 39406617600.

The previous prime is 85594478143. The next prime is 85594478261. The reversal of 85594478164 is 46187449558.

It can be written as a sum of positive squares in 4 ways, for example, as 51509933764 + 34084544400 = 226958^2 + 184620^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2031577 + ... + 2073280.

It is an arithmetic number, because the mean of its divisors is an integer number (6738124407).

Almost surely, 2^85594478164 is an apocalyptic number.

It is an amenable number.

85594478164 is a deficient number, since it is larger than the sum of its proper divisors (76120507604).

85594478164 is a wasteful number, since it uses less digits than its factorization.

85594478164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105275 (or 4105273 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 61.

The spelling of 85594478164 in words is "eighty-five billion, five hundred ninety-four million, four hundred seventy-eight thousand, one hundred sixty-four".