166486938 has 16 divisors (see below), whose sum is σ = 335210400. Its totient is φ = 55122896.

The previous prime is 166486909. The next prime is 166486963. The reversal of 166486938 is 839684661.

166486938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92220 + ... + 94007.

It is an arithmetic number, because the mean of its divisors is an integer number (20950650).

Almost surely, 2^166486938 is an apocalyptic number.

166486938 is an abundant number, since it is smaller than the sum of its proper divisors (168723462).

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

166486938 is a wasteful number, since it uses less digits than its factorization.

166486938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186381.

The product of its digits is 1492992, while the sum is 51.

The square root of 166486938 is about 12902.9817484177. The cubic root of 166486938 is about 550.1233200057.

The spelling of 166486938 in words is "one hundred sixty-six million, four hundred eighty-six thousand, nine hundred thirty-eight".