166842974 has 8 divisors (see below), whose sum is σ = 258894360. Its totient is φ = 80544856.

The previous prime is 166842937. The next prime is 166843013. The reversal of 166842974 is 479248661.

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, 1438244 + ... + 1438359.

It is an arithmetic number, because the mean of its divisors is an integer number (32361795).

Almost surely, 2^166842974 is an apocalyptic number.

166842974 is a deficient number, since it is larger than the sum of its proper divisors (92051386).

166842974 is a wasteful number, since it uses less digits than its factorization.

166842974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876634.

The product of its digits is 580608, while the sum is 47.

The square root of 166842974 is about 12916.7710361375. The cubic root of 166842974 is about 550.5151910933.

The spelling of 166842974 in words is "one hundred sixty-six million, eight hundred forty-two thousand, nine hundred seventy-four".