166850085 has 16 divisors (see below), whose sum is σ = 267635520. Its totient is φ = 88761600.

The previous prime is 166850083. The next prime is 166850113. The reversal of 166850085 is 580058661.

It is not a de Polignac number, because 166850085 - 2¹ = 166850083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166850083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7855 + ... + 19884.

It is an arithmetic number, because the mean of its divisors is an integer number (16727220).

Almost surely, 2^166850085 is an apocalyptic number.

166850085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166850085 is a deficient number, since it is larger than the sum of its proper divisors (100785435).

166850085 is a wasteful number, since it uses less digits than its factorization.

166850085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28148.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 166850085 is about 12917.0462954965. The cubic root of 166850085 is about 550.5230121357.

The spelling of 166850085 in words is "one hundred sixty-six million, eight hundred fifty thousand, eighty-five".