166871230086 has 64 divisors (see below), whose sum is σ = 376200806400. Its totient is φ = 48887210400.

The previous prime is 166871230069. The next prime is 166871230091. The reversal of 166871230086 is 680032178661.

166871230086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2044855 + ... + 2124893.

It is an arithmetic number, because the mean of its divisors is an integer number (5878137600).

Almost surely, 2^166871230086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166871230086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188100403200).

166871230086 is an abundant number, since it is smaller than the sum of its proper divisors (209329576314).

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

166871230086 is a wasteful number, since it uses less digits than its factorization.

166871230086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81105.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 166871230086 in words is "one hundred sixty-six billion, eight hundred seventy-one million, two hundred thirty thousand, eighty-six".