266334091 has 2 divisors, whose sum is σ = 266334092. Its totient is φ = 266334090.

The previous prime is 266334067. The next prime is 266334097. The reversal of 266334091 is 190433662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266334091 - 2¹⁷ = 266203019 is a prime.

It is not a weakly prime, because it can be changed into another prime (266334097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133167045 + 133167046.

It is an arithmetic number, because the mean of its divisors is an integer number (133167046).

Almost surely, 2^266334091 is an apocalyptic number.

266334091 is a deficient number, since it is larger than the sum of its proper divisors (1).

266334091 is an equidigital number, since it uses as much as digits as its factorization.

266334091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 266334091 is about 16319.7454330636. The cubic root of 266334091 is about 643.3918965245.

The spelling of 266334091 in words is "two hundred sixty-six million, three hundred thirty-four thousand, ninety-one".