85516180 has 12 divisors (see below), whose sum is σ = 179584020. Its totient is φ = 34206464.

The previous prime is 85516159. The next prime is 85516183. The reversal of 85516180 is 8161558.

It can be written as a sum of positive squares in 2 ways, for example, as 13571856 + 71944324 = 3684^2 + 8482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85516183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137885 + ... + 2137924.

It is an arithmetic number, because the mean of its divisors is an integer number (14965335).

Almost surely, 2^85516180 is an apocalyptic number.

It is an amenable number.

85516180 is an abundant number, since it is smaller than the sum of its proper divisors (94067840).

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

85516180 is a wasteful number, since it uses less digits than its factorization.

85516180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275818 (or 4275816 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 85516180 is about 9247.4958772632. The cubic root of 85516180 is about 440.5711934364.

The spelling of 85516180 in words is "eighty-five million, five hundred sixteen thousand, one hundred eighty".