166945196 has 24 divisors (see below), whose sum is σ = 319108944. Its totient is φ = 75790080.

The previous prime is 166945189. The next prime is 166945217. The reversal of 166945196 is 691549661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166945196.

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, 43616 + ... + 47288.

It is an arithmetic number, because the mean of its divisors is an integer number (13296206).

Almost surely, 2^166945196 is an apocalyptic number.

It is an amenable number.

166945196 is a deficient number, since it is larger than the sum of its proper divisors (152163748).

166945196 is a wasteful number, since it uses less digits than its factorization.

166945196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721 (or 4719 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 166945196 is about 12920.7273789056. The cubic root of 166945196 is about 550.6275987334.

The spelling of 166945196 in words is "one hundred sixty-six million, nine hundred forty-five thousand, one hundred ninety-six".