266340733 has 2 divisors, whose sum is σ = 266340734. Its totient is φ = 266340732.

The previous prime is 266340707. The next prime is 266340779. The reversal of 266340733 is 337043662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 123609924 = 11947^2 + 11118^2 .

It is a cyclic number.

It is not a de Polignac number, because 266340733 - 2¹³ = 266332541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266340703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133170366 + 133170367.

It is an arithmetic number, because the mean of its divisors is an integer number (133170367).

Almost surely, 2^266340733 is an apocalyptic number.

It is an amenable number.

266340733 is a deficient number, since it is larger than the sum of its proper divisors (1).

266340733 is an equidigital number, since it uses as much as digits as its factorization.

266340733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 266340733 is about 16319.9489276162. The cubic root of 266340733 is about 643.3972449116.

The spelling of 266340733 in words is "two hundred sixty-six million, three hundred forty thousand, seven hundred thirty-three".