85159675240 has 24 divisors (see below), whose sum is σ = 191613422070. Its totient is φ = 34063131840.

The previous prime is 85159675177. The next prime is 85159675247. The reversal of 85159675240 is 4257695158.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 26557917156 + 58601758084 = 162966^2 + 242078^2 .

It is not an unprimeable number, because it can be changed into a prime (85159675247) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1822570 + ... + 1868710.

Almost surely, 2^85159675240 is an apocalyptic number.

It is an amenable number.

85159675240 is an abundant number, since it is smaller than the sum of its proper divisors (106453746830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85159675240 is an frugal number, since it uses more digits than its factorization.

85159675240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92293 (or 46148 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 85159675240 in words is "eighty-five billion, one hundred fifty-nine million, six hundred seventy-five thousand, two hundred forty".