266057051020247 has 2 divisors, whose sum is σ = 266057051020248. Its totient is φ = 266057051020246.

The previous prime is 266057051020237. The next prime is 266057051020259. The reversal of 266057051020247 is 742020150750662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266057051020247 - 2³⁴ = 266039871151063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266057051020207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133028525510123 + 133028525510124.

It is an arithmetic number, because the mean of its divisors is an integer number (133028525510124).

Almost surely, 2^{266057051020247} is an apocalyptic number.

266057051020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

266057051020247 is an equidigital number, since it uses as much as digits as its factorization.

266057051020247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 266057051020247 in words is "two hundred sixty-six trillion, fifty-seven billion, fifty-one million, twenty thousand, two hundred forty-seven".