266464097 has 2 divisors, whose sum is σ = 266464098. Its totient is φ = 266464096.

The previous prime is 266464073. The next prime is 266464109. The reversal of 266464097 is 790464662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258534241 + 7929856 = 16079^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 266464097 - 2¹⁸ = 266201953 is a prime.

It is a super-2 number, since 2×266464097² = 142006229980050818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266464397) 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 as a sum of consecutive naturals, namely, 133232048 + 133232049.

It is an arithmetic number, because the mean of its divisors is an integer number (133232049).

Almost surely, 2^266464097 is an apocalyptic number.

It is an amenable number.

266464097 is a deficient number, since it is larger than the sum of its proper divisors (1).

266464097 is an equidigital number, since it uses as much as digits as its factorization.

266464097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 266464097 is about 16323.7280362055. The cubic root of 266464097 is about 643.4965660649.

The spelling of 266464097 in words is "two hundred sixty-six million, four hundred sixty-four thousand, ninety-seven".