166866108 has 12 divisors (see below), whose sum is σ = 389354280. Its totient is φ = 55622032.

The previous prime is 166866107. The next prime is 166866109. The reversal of 166866108 is 801668661.

It is an interprime number because it is at equal distance from previous prime (166866107) and next prime (166866109).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 166866108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166866107) 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, 6952743 + ... + 6952766.

It is an arithmetic number, because the mean of its divisors is an integer number (32446190).

Almost surely, 2^166866108 is an apocalyptic number.

It is an amenable number.

166866108 is an abundant number, since it is smaller than the sum of its proper divisors (222488172).

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

166866108 is a wasteful number, since it uses less digits than its factorization.

166866108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13905516 (or 13905514 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 166866108 is about 12917.6665075392. Note that the first 3 decimals coincide. The cubic root of 166866108 is about 550.5406342381.

It can be divided in two parts, 1668 and 66108, that added together give a palindrome (67776).

The spelling of 166866108 in words is "one hundred sixty-six million, eight hundred sixty-six thousand, one hundred eight".