266046243 has 16 divisors (see below), whose sum is σ = 385748640. Its totient is φ = 162418176.

The previous prime is 266046239. The next prime is 266046259. The reversal of 266046243 is 342640662.

It is not a de Polignac number, because 266046243 - 2² = 266046239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266046233) 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 15 ways as a sum of consecutive naturals, for example, 68608 + ... + 72381.

It is an arithmetic number, because the mean of its divisors is an integer number (24109290).

Almost surely, 2^266046243 is an apocalyptic number.

266046243 is a deficient number, since it is larger than the sum of its proper divisors (119702397).

266046243 is a wasteful number, since it uses less digits than its factorization.

266046243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141046.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 266046243 is about 16310.9240388152. The cubic root of 266046243 is about 643.1600250559.

The spelling of 266046243 in words is "two hundred sixty-six million, forty-six thousand, two hundred forty-three".