266163 has 4 divisors (see below), whose sum is σ = 354888. Its totient is φ = 177440.

The previous prime is 266159. The next prime is 266177. The reversal of 266163 is 361662.

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

It is a cyclic number.

It is not a de Polignac number, because 266163 - 2² = 266159 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (266153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44358 + ... + 44363.

It is an arithmetic number, because the mean of its divisors is an integer number (88722).

2²⁶⁶¹⁶³ is an apocalyptic number.

266163 is a deficient number, since it is larger than the sum of its proper divisors (88725).

266163 is an equidigital number, since it uses as much as digits as its factorization.

266163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88724.

The product of its digits is 1296, while the sum is 24.

The square root of 266163 is about 515.9098758504. The cubic root of 266163 is about 64.3254096988.

The spelling of 266163 in words is "two hundred sixty-six thousand, one hundred sixty-three".