2311666 has 16 divisors (see below), whose sum is σ = 3991104. Its totient is φ = 983664.

The previous prime is 2311657. The next prime is 2311667. The reversal of 2311666 is 6661132.

2311666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2311666.

It is not an unprimeable number, because it can be changed into a prime (2311667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776 + ... + 2788.

It is an arithmetic number, because the mean of its divisors is an integer number (249444).

2^2311666 is an apocalyptic number.

2311666 is a deficient number, since it is larger than the sum of its proper divisors (1679438).

2311666 is a wasteful number, since it uses less digits than its factorization.

2311666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185.

The product of its digits is 1296, while the sum is 25.

The square root of 2311666 is about 1520.4163903352. The cubic root of 2311666 is about 132.2234125962.

Adding to 2311666 its reverse (6661132), we get a palindrome (8972798).

The spelling of 2311666 in words is "two million, three hundred eleven thousand, six hundred sixty-six".