266748017 has 2 divisors, whose sum is σ = 266748018. Its totient is φ = 266748016.

The previous prime is 266747989. The next prime is 266748019. The reversal of 266748017 is 710847662.

266748017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243235216 + 23512801 = 15596^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 266748017 - 2¹⁸ = 266485873 is a prime.

Together with 266748019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (266748019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133374008 + 133374009.

It is an arithmetic number, because the mean of its divisors is an integer number (133374009).

Almost surely, 2^266748017 is an apocalyptic number.

It is an amenable number.

266748017 is a deficient number, since it is larger than the sum of its proper divisors (1).

266748017 is an equidigital number, since it uses as much as digits as its factorization.

266748017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 266748017 is about 16332.4222637060. The cubic root of 266748017 is about 643.7250354852.

The spelling of 266748017 in words is "two hundred sixty-six million, seven hundred forty-eight thousand, seventeen".