199166 has 12 divisors (see below), whose sum is σ = 328776. Its totient is φ = 90420.

The previous prime is 199153. The next prime is 199181. The reversal of 199166 is 661991.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 199166.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (27398).

2¹⁹⁹¹⁶⁶ is an apocalyptic number.

199166 is a deficient number, since it is larger than the sum of its proper divisors (129610).

199166 is a wasteful number, since it uses less digits than its factorization.

199166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 836 counting only the distinct ones).

The product of its digits is 2916, while the sum is 32.

The square root of 199166 is about 446.2801810522. The cubic root of 199166 is about 58.3989538188.

The spelling of 199166 in words is "one hundred ninety-nine thousand, one hundred sixty-six".