266775385 has 8 divisors (see below), whose sum is σ = 321471360. Its totient is φ = 212526384.

The previous prime is 266775359. The next prime is 266775389. The reversal of 266775385 is 583577662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266775385 - 2⁹ = 266774873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266775389) 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, 110427 + ... + 112816.

It is an arithmetic number, because the mean of its divisors is an integer number (40183920).

Almost surely, 2^266775385 is an apocalyptic number.

It is an amenable number.

266775385 is a deficient number, since it is larger than the sum of its proper divisors (54695975).

266775385 is a wasteful number, since it uses less digits than its factorization.

266775385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223487.

The product of its digits is 2116800, while the sum is 49.

The square root of 266775385 is about 16333.2600848698. The cubic root of 266775385 is about 643.7470498498.

The spelling of 266775385 in words is "two hundred sixty-six million, seven hundred seventy-five thousand, three hundred eighty-five".