85166244 has 36 divisors (see below), whose sum is σ = 216936720. Its totient is φ = 28170480.

The previous prime is 85166239. The next prime is 85166251. The reversal of 85166244 is 44266158.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 85166199 and 85166208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4314 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (6026020).

Almost surely, 2^85166244 is an apocalyptic number.

It is an amenable number.

85166244 is an abundant number, since it is smaller than the sum of its proper divisors (131770476).

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

85166244 is a wasteful number, since it uses less digits than its factorization.

85166244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200 (or 18195 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 85166244 is about 9228.5559000312. Note that the first 3 decimals coincide. The cubic root of 85166244 is about 439.9694262503.

The spelling of 85166244 in words is "eighty-five million, one hundred sixty-six thousand, two hundred forty-four".