166841394 has 16 divisors (see below), whose sum is σ = 351245280. Its totient is φ = 52686720.

The previous prime is 166841387. The next prime is 166841407. The reversal of 166841394 is 493148661.

166841394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731647 + ... + 731874.

It is an arithmetic number, because the mean of its divisors is an integer number (21952830).

Almost surely, 2^166841394 is an apocalyptic number.

166841394 is an abundant number, since it is smaller than the sum of its proper divisors (184403886).

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

166841394 is a wasteful number, since it uses less digits than its factorization.

166841394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463545.

The product of its digits is 124416, while the sum is 42.

The square root of 166841394 is about 12916.7098751965. The cubic root of 166841394 is about 550.5134532981.

The spelling of 166841394 in words is "one hundred sixty-six million, eight hundred forty-one thousand, three hundred ninety-four".