266116 has 6 divisors (see below), whose sum is σ = 465710. Its totient is φ = 133056.

The previous prime is 266111. The next prime is 266117. The reversal of 266116 is 611662.

It can be written as a sum of positive squares in only one way, i.e., 254016 + 12100 = 504^2 + 110^2 .

It is not an unprimeable number, because it can be changed into a prime (266111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33261 + ... + 33268.

2²⁶⁶¹¹⁶ is an apocalyptic number.

It is an amenable number.

266116 is a deficient number, since it is larger than the sum of its proper divisors (199594).

266116 is a wasteful number, since it uses less digits than its factorization.

266116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66533 (or 66531 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 266116 is about 515.8643232479. The cubic root of 266116 is about 64.3216232068.

Adding to 266116 its reverse (611662), we get a palindrome (877778).

The spelling of 266116 in words is "two hundred sixty-six thousand, one hundred sixteen".