199746166 has 8 divisors (see below), whose sum is σ = 300928320. Its totient is φ = 99436728.

The previous prime is 199746161. The next prime is 199746167. The reversal of 199746166 is 661647991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199746161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217606 + ... + 218521.

It is an arithmetic number, because the mean of its divisors is an integer number (37616040).

Almost surely, 2^199746166 is an apocalyptic number.

199746166 is a deficient number, since it is larger than the sum of its proper divisors (101182154).

199746166 is a wasteful number, since it uses less digits than its factorization.

199746166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436358.

The product of its digits is 489888, while the sum is 49.

The square root of 199746166 is about 14133.1583872820. The cubic root of 199746166 is about 584.5560378628.

The spelling of 199746166 in words is "one hundred ninety-nine million, seven hundred forty-six thousand, one hundred sixty-six".