166850238 has 16 divisors (see below), whose sum is σ = 341840016. Its totient is φ = 54260160.

The previous prime is 166850231. The next prime is 166850249. The reversal of 166850238 is 832058661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 166850196 and 166850205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166850231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338881 + ... + 339372.

It is an arithmetic number, because the mean of its divisors is an integer number (21365001).

Almost surely, 2^166850238 is an apocalyptic number.

166850238 is an abundant number, since it is smaller than the sum of its proper divisors (174989778).

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

166850238 is a wasteful number, since it uses less digits than its factorization.

166850238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678299.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 166850238 is about 12917.0522179017. The cubic root of 166850238 is about 550.5231804105.

The spelling of 166850238 in words is "one hundred sixty-six million, eight hundred fifty thousand, two hundred thirty-eight".