85500178312 has 16 divisors (see below), whose sum is σ = 160320606300. Its totient is φ = 42748016640.

The previous prime is 85500178303. The next prime is 85500178333. The reversal of 85500178312 is 21387100558.

It can be written as a sum of positive squares in 2 ways, for example, as 85342273956 + 157904356 = 292134^2 + 12566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76137 + ... + 420472.

Almost surely, 2^85500178312 is an apocalyptic number.

It is an amenable number.

85500178312 is a deficient number, since it is larger than the sum of its proper divisors (74820427988).

85500178312 is a wasteful number, since it uses less digits than its factorization.

85500178312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518136 (or 518132 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 85500178312 in words is "eighty-five billion, five hundred million, one hundred seventy-eight thousand, three hundred twelve".