85180716 has 18 divisors (see below), whose sum is σ = 215318012. Its totient is φ = 28393560.

The previous prime is 85180663. The next prime is 85180741. The reversal of 85180716 is 61708158.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2366131 = 85180716 / (8 + 5 + 1 + 8 + 0 + 7 + 1 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183030 + ... + 1183101.

Almost surely, 2^85180716 is an apocalyptic number.

It is an amenable number.

85180716 is an abundant number, since it is smaller than the sum of its proper divisors (130137296).

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

85180716 is a wasteful number, since it uses less digits than its factorization.

85180716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366141 (or 2366136 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 85180716 is about 9229.3399547313. The cubic root of 85180716 is about 439.9943456574.

The spelling of 85180716 in words is "eighty-five million, one hundred eighty thousand, seven hundred sixteen".