166198 has 8 divisors (see below), whose sum is σ = 260208. Its totient is φ = 79464.

The previous prime is 166189. The next prime is 166207. The reversal of 166198 is 891661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166189) and next prime (166207).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761 + ... + 1852.

It is an arithmetic number, because the mean of its divisors is an integer number (32526).

2¹⁶⁶¹⁹⁸ is an apocalyptic number.

166198 is a deficient number, since it is larger than the sum of its proper divisors (94010).

166198 is a wasteful number, since it uses less digits than its factorization.

166198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638.

The product of its digits is 2592, while the sum is 31.

The square root of 166198 is about 407.6738892792. The cubic root of 166198 is about 54.9804889471.

The spelling of 166198 in words is "one hundred sixty-six thousand, one hundred ninety-eight".