166324163 has 4 divisors (see below), whose sum is σ = 167020320. Its totient is φ = 165628008.

The previous prime is 166324133. The next prime is 166324177. The reversal of 166324163 is 361423661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361423661 = 67 ⋅5394383.

It is a cyclic number.

It is not a de Polignac number, because 166324163 - 2¹⁶ = 166258627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166324133) 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, 347720 + ... + 348197.

It is an arithmetic number, because the mean of its divisors is an integer number (41755080).

Almost surely, 2^166324163 is an apocalyptic number.

166324163 is a deficient number, since it is larger than the sum of its proper divisors (696157).

166324163 is an equidigital number, since it uses as much as digits as its factorization.

166324163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696156.

The product of its digits is 15552, while the sum is 32.

The square root of 166324163 is about 12896.6725553532. The cubic root of 166324163 is about 549.9439755606.

The spelling of 166324163 in words is "one hundred sixty-six million, three hundred twenty-four thousand, one hundred sixty-three".