166396242 has 32 divisors (see below), whose sum is σ = 341897472. Its totient is φ = 53968464.

The previous prime is 166396231. The next prime is 166396249. The reversal of 166396242 is 242693661.

166396242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166396242.

It is not an unprimeable number, because it can be changed into a prime (166396249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30873 + ... + 35859.

It is an arithmetic number, because the mean of its divisors is an integer number (10684296).

Almost surely, 2^166396242 is an apocalyptic number.

166396242 is an abundant number, since it is smaller than the sum of its proper divisors (175501230).

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

166396242 is a wasteful number, since it uses less digits than its factorization.

166396242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142.

The product of its digits is 93312, while the sum is 39.

The square root of 166396242 is about 12899.4667331638. The cubic root of 166396242 is about 550.0234061664.

The spelling of 166396242 in words is "one hundred sixty-six million, three hundred ninety-six thousand, two hundred forty-two".