166994236 has 12 divisors (see below), whose sum is σ = 292676328. Its totient is φ = 83372432.

The previous prime is 166994207. The next prime is 166994239. The reversal of 166994236 is 632499661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166994239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28126 + ... + 33541.

It is an arithmetic number, because the mean of its divisors is an integer number (24389694).

Almost surely, 2^166994236 is an apocalyptic number.

It is an amenable number.

166994236 is a deficient number, since it is larger than the sum of its proper divisors (125682092).

166994236 is a wasteful number, since it uses less digits than its factorization.

166994236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62348 (or 62346 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The square root of 166994236 is about 12922.6249655401. The cubic root of 166994236 is about 550.6815089077.

The spelling of 166994236 in words is "one hundred sixty-six million, nine hundred ninety-four thousand, two hundred thirty-six".