166944167 has 8 divisors (see below), whose sum is σ = 181203456. Its totient is φ = 152887392.

The previous prime is 166944161. The next prime is 166944179. The reversal of 166944167 is 761449661.

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

It is a cyclic number.

It is not a de Polignac number, because 166944167 - 2¹⁰ = 166943143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166944161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48908 + ... + 52209.

It is an arithmetic number, because the mean of its divisors is an integer number (22650432).

Almost surely, 2^166944167 is an apocalyptic number.

166944167 is a deficient number, since it is larger than the sum of its proper divisors (14259289).

166944167 is a wasteful number, since it uses less digits than its factorization.

166944167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101257.

The product of its digits is 217728, while the sum is 44.

The square root of 166944167 is about 12920.6875591046. The cubic root of 166944167 is about 550.6264674300.

The spelling of 166944167 in words is "one hundred sixty-six million, nine hundred forty-four thousand, one hundred sixty-seven".