166422163 has 8 divisors (see below), whose sum is σ = 177128208. Its totient is φ = 155817984.

The previous prime is 166422161. The next prime is 166422209. The reversal of 166422163 is 361224661.

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

It is a cyclic number.

It is not a de Polignac number, because 166422163 - 2¹ = 166422161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166422161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22081 + ... + 28642.

It is an arithmetic number, because the mean of its divisors is an integer number (22141026).

Almost surely, 2^166422163 is an apocalyptic number.

166422163 is a deficient number, since it is larger than the sum of its proper divisors (10706045).

166422163 is a wasteful number, since it uses less digits than its factorization.

166422163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50933.

The product of its digits is 10368, while the sum is 31.

The square root of 166422163 is about 12900.4714254945. The cubic root of 166422163 is about 550.0519653380.

The spelling of 166422163 in words is "one hundred sixty-six million, four hundred twenty-two thousand, one hundred sixty-three".