166879994 has 8 divisors (see below), whose sum is σ = 250974720. Its totient is φ = 83221756.

The previous prime is 166879969. The next prime is 166879997. The reversal of 166879994 is 499978661.

166879994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (166879997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108164 + ... + 109695.

It is an arithmetic number, because the mean of its divisors is an integer number (31371840).

Almost surely, 2^166879994 is an apocalyptic number.

166879994 is a deficient number, since it is larger than the sum of its proper divisors (84094726).

166879994 is a wasteful number, since it uses less digits than its factorization.

166879994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218244.

The product of its digits is 5878656, while the sum is 59.

The square root of 166879994 is about 12918.2039773337. The cubic root of 166879994 is about 550.5559051546. Note that the first 3 decimals are identical.

The spelling of 166879994 in words is "one hundred sixty-six million, eight hundred seventy-nine thousand, nine hundred ninety-four".