166816817166 has 8 divisors (see below), whose sum is σ = 333633634344. Its totient is φ = 55605605720.

The previous prime is 166816817161. The next prime is 166816817171. The reversal of 166816817166 is 661718618661.

166816817166 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166816817161) and next prime (166816817171).

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

166816817166 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166816817161) 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 3 ways as a sum of consecutive naturals, for example, 13901401425 + ... + 13901401436.

It is an arithmetic number, because the mean of its divisors is an integer number (41704204293).

Almost surely, 2^166816817166 is an apocalyptic number.

166816817166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166816817166 is a wasteful number, since it uses less digits than its factorization.

166816817166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27802802866.

The product of its digits is 3483648, while the sum is 57.

The spelling of 166816817166 in words is "one hundred sixty-six billion, eight hundred sixteen million, eight hundred seventeen thousand, one hundred sixty-six".