265666113 has 24 divisors (see below), whose sum is σ = 406879200. Its totient is φ = 166567104.

The previous prime is 265666099. The next prime is 265666117. The reversal of 265666113 is 311666562.

It is not a de Polignac number, because 265666113 - 2⁴ = 265666097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (265666117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18181 + ... + 29357.

It is an arithmetic number, because the mean of its divisors is an integer number (16953300).

Almost surely, 2^265666113 is an apocalyptic number.

It is an amenable number.

265666113 is a deficient number, since it is larger than the sum of its proper divisors (141213087).

265666113 is a wasteful number, since it uses less digits than its factorization.

265666113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11341 (or 11338 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 265666113 is about 16299.2672534688. The cubic root of 265666113 is about 642.8535608478.

The spelling of 265666113 in words is "two hundred sixty-five million, six hundred sixty-six thousand, one hundred thirteen".