166271373 has 20 divisors (see below), whose sum is σ = 262993500. Its totient is φ = 104326272.

The previous prime is 166271341. The next prime is 166271389. The reversal of 166271373 is 373172661.

166271373 is a `hidden beast` number, since 16 + 6 + 271 + 373 = 666.

166271373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 95004009 + 71267364 = 9747^2 + 8442^2 .

It is not a de Polignac number, because 166271373 - 2⁵ = 166271341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166271323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58998 + ... + 61751.

It is an arithmetic number, because the mean of its divisors is an integer number (13149675).

Almost surely, 2^166271373 is an apocalyptic number.

It is an amenable number.

166271373 is a deficient number, since it is larger than the sum of its proper divisors (96722127).

166271373 is a wasteful number, since it uses less digits than its factorization.

166271373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120778 (or 120769 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 166271373 is about 12894.6257409822. The cubic root of 166271373 is about 549.8857867524.

The spelling of 166271373 in words is "one hundred sixty-six million, two hundred seventy-one thousand, three hundred seventy-three".