266081323 has 2 divisors, whose sum is σ = 266081324. Its totient is φ = 266081322.

The previous prime is 266081311. The next prime is 266081371. The reversal of 266081323 is 323180662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266081323 is a prime.

It is not a weakly prime, because it can be changed into another prime (266081623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133040661 + 133040662.

It is an arithmetic number, because the mean of its divisors is an integer number (133040662).

Almost surely, 2^266081323 is an apocalyptic number.

266081323 is a deficient number, since it is larger than the sum of its proper divisors (1).

266081323 is an equidigital number, since it uses as much as digits as its factorization.

266081323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 266081323 is about 16311.9993563021. Note that the first 3 decimals coincide. The cubic root of 266081323 is about 643.1882921494.

The spelling of 266081323 in words is "two hundred sixty-six million, eighty-one thousand, three hundred twenty-three".