266388113 has 16 divisors (see below), whose sum is σ = 307152000. Its totient is φ = 229324032.

The previous prime is 266388091. The next prime is 266388137. The reversal of 266388113 is 311883662.

It is a cyclic number.

It is not a de Polignac number, because 266388113 - 2⁸ = 266387857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266388173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4853 + ... + 23586.

It is an arithmetic number, because the mean of its divisors is an integer number (19197000).

Almost surely, 2^266388113 is an apocalyptic number.

It is an amenable number.

266388113 is a deficient number, since it is larger than the sum of its proper divisors (40763887).

266388113 is a wasteful number, since it uses less digits than its factorization.

266388113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28504.

The product of its digits is 41472, while the sum is 38.

The square root of 266388113 is about 16321.4004607448. The cubic root of 266388113 is about 643.4353944824.

The spelling of 266388113 in words is "two hundred sixty-six million, three hundred eighty-eight thousand, one hundred thirteen".