166118382 has 24 divisors (see below), whose sum is σ = 369652296. Its totient is φ = 53876016.

The previous prime is 166118371. The next prime is 166118389. The reversal of 166118382 is 283811661.

166118382 is a `hidden beast` number, since 1 + 6 + 611 + 8 + 38 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166118389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124048 + ... + 125379.

It is an arithmetic number, because the mean of its divisors is an integer number (15402179).

Almost surely, 2^166118382 is an apocalyptic number.

166118382 is an abundant number, since it is smaller than the sum of its proper divisors (203533914).

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

166118382 is a wasteful number, since it uses less digits than its factorization.

166118382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249472 (or 249469 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 166118382 is about 12888.6920205271. The cubic root of 166118382 is about 549.7170798351.

The spelling of 166118382 in words is "one hundred sixty-six million, one hundred eighteen thousand, three hundred eighty-two".