166842174 has 8 divisors (see below), whose sum is σ = 333684360. Its totient is φ = 55614056.

The previous prime is 166842167. The next prime is 166842187. The reversal of 166842174 is 471248661.

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

166842174 is an admirable number.

It is a super-2 number, since 2×166842174² = 55672622050092552, which contains 22 as substring.

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, 13903509 + ... + 13903520.

It is an arithmetic number, because the mean of its divisors is an integer number (41710545).

Almost surely, 2^166842174 is an apocalyptic number.

166842174 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166842174 is a wasteful number, since it uses less digits than its factorization.

166842174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27807034.

The product of its digits is 64512, while the sum is 39.

The square root of 166842174 is about 12916.7400686086. The cubic root of 166842174 is about 550.5143111984.

The spelling of 166842174 in words is "one hundred sixty-six million, eight hundred forty-two thousand, one hundred seventy-four".