166743159 has 8 divisors (see below), whose sum is σ = 242535552. Its totient is φ = 101056440.

The previous prime is 166743151. The next prime is 166743179. The reversal of 166743159 is 951347661.

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

It is not a de Polignac number, because 166743159 - 2³ = 166743151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166743159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166743151) 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, 2526379 + ... + 2526444.

It is an arithmetic number, because the mean of its divisors is an integer number (30316944).

Almost surely, 2^166743159 is an apocalyptic number.

166743159 is a deficient number, since it is larger than the sum of its proper divisors (75792393).

166743159 is a wasteful number, since it uses less digits than its factorization.

166743159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052837.

The product of its digits is 136080, while the sum is 42.

The square root of 166743159 is about 12912.9066828503. The cubic root of 166743159 is about 550.4053859791.

The spelling of 166743159 in words is "one hundred sixty-six million, seven hundred forty-three thousand, one hundred fifty-nine".