166206873 has 24 divisors (see below), whose sum is σ = 258601248. Its totient is φ = 94676736.

The previous prime is 166206857. The next prime is 166206941. The reversal of 166206873 is 378602661.

166206873 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 166206873 - 2⁴ = 166206857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166206673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50290 + ... + 53492.

It is an arithmetic number, because the mean of its divisors is an integer number (10775052).

Almost surely, 2^166206873 is an apocalyptic number.

It is an amenable number.

166206873 is a deficient number, since it is larger than the sum of its proper divisors (92394375).

166206873 is a wasteful number, since it uses less digits than its factorization.

166206873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 166206873 is about 12892.1244564269. The cubic root of 166206873 is about 549.8146736482.

The spelling of 166206873 in words is "one hundred sixty-six million, two hundred six thousand, eight hundred seventy-three".