266268745 has 4 divisors (see below), whose sum is σ = 319522500. Its totient is φ = 213014992.

The previous prime is 266268733. The next prime is 266268763. The reversal of 266268745 is 547862662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44943616 + 221325129 = 6704^2 + 14877^2 .

It is a cyclic number.

It is not a de Polignac number, because 266268745 - 2⁵ = 266268713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266268695 and 266268704.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26626870 + ... + 26626879.

It is an arithmetic number, because the mean of its divisors is an integer number (79880625).

Almost surely, 2^266268745 is an apocalyptic number.

It is an amenable number.

266268745 is a deficient number, since it is larger than the sum of its proper divisors (53253755).

266268745 is an equidigital number, since it uses as much as digits as its factorization.

266268745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53253754.

The product of its digits is 967680, while the sum is 46.

The square root of 266268745 is about 16317.7432569581. The cubic root of 266268745 is about 643.3392727370.

It can be divided in two parts, 266 and 268745, that added together give a triangular number (269011 = T₇₃₃).

The spelling of 266268745 in words is "two hundred sixty-six million, two hundred sixty-eight thousand, seven hundred forty-five".