166486163 has 4 divisors (see below), whose sum is σ = 166568928. Its totient is φ = 166403400.

The previous prime is 166486157. The next prime is 166486169. The reversal of 166486163 is 361684661.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (166486157) and next prime (166486169).

It is a cyclic number.

It is not a de Polignac number, because 166486163 - 2¹² = 166482067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166486163.

It is not an unprimeable number, because it can be changed into a prime (166486169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38288 + ... + 42413.

It is an arithmetic number, because the mean of its divisors is an integer number (41642232).

Almost surely, 2^166486163 is an apocalyptic number.

166486163 is a deficient number, since it is larger than the sum of its proper divisors (82765).

166486163 is an equidigital number, since it uses as much as digits as its factorization.

166486163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82764.

The product of its digits is 124416, while the sum is 41.

The square root of 166486163 is about 12902.9517165647. The cubic root of 166486163 is about 550.1224663928.

The spelling of 166486163 in words is "one hundred sixty-six million, four hundred eighty-six thousand, one hundred sixty-three".