166065185 has 16 divisors (see below), whose sum is σ = 234118080. Its totient is φ = 111483840.

The previous prime is 166065173. The next prime is 166065209. The reversal of 166065185 is 581560661.

166065185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166065185 - 2⁴ = 166065169 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115415 + ... + 116844.

It is an arithmetic number, because the mean of its divisors is an integer number (14632380).

Almost surely, 2^166065185 is an apocalyptic number.

It is an amenable number.

166065185 is a deficient number, since it is larger than the sum of its proper divisors (68052895).

166065185 is a wasteful number, since it uses less digits than its factorization.

166065185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232288.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 166065185 is about 12886.6281470368. The cubic root of 166065185 is about 549.6583939323.

The spelling of 166065185 in words is "one hundred sixty-six million, sixty-five thousand, one hundred eighty-five".