2106320266 has 16 divisors (see below), whose sum is σ = 3297832704. Its totient is φ = 1007070064.

The previous prime is 2106320261. The next prime is 2106320287. The reversal of 2106320266 is 6620236012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2106320261) 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, 267660 + ... + 275416.

It is an arithmetic number, because the mean of its divisors is an integer number (206114544).

Almost surely, 2^2106320266 is an apocalyptic number.

2106320266 is a deficient number, since it is larger than the sum of its proper divisors (1191512438).

2106320266 is a wasteful number, since it uses less digits than its factorization.

2106320266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13685.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2106320266 is about 45894.6648969137. The cubic root of 2106320266 is about 1281.8625768715.

Adding to 2106320266 its reverse (6620236012), we get a palindrome (8726556278).

The spelling of 2106320266 in words is "two billion, one hundred six million, three hundred twenty thousand, two hundred sixty-six".