2666163 has 4 divisors (see below), whose sum is σ = 3554888. Its totient is φ = 1777440.

The previous prime is 2666141. The next prime is 2666177. The reversal of 2666163 is 3616662.

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

It is not a de Polignac number, because 2666163 - 2¹⁰ = 2665139 is a prime.

It is a D-number.

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 2666163.

It is not an unprimeable number, because it can be changed into a prime (2666663) 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, 444358 + ... + 444363.

It is an arithmetic number, because the mean of its divisors is an integer number (888722).

2^2666163 is an apocalyptic number.

2666163 is a deficient number, since it is larger than the sum of its proper divisors (888725).

2666163 is an equidigital number, since it uses as much as digits as its factorization.

2666163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888724.

The product of its digits is 7776, while the sum is 30.

The square root of 2666163 is about 1632.8389387812. The cubic root of 2666163 is about 138.6635237464.

The spelling of 2666163 in words is "two million, six hundred sixty-six thousand, one hundred sixty-three".