266057051005723 has 2 divisors, whose sum is σ = 266057051005724. Its totient is φ = 266057051005722.

The previous prime is 266057051005717. The next prime is 266057051005751. The reversal of 266057051005723 is 327500150750662.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266057051005723 is a prime.

It is not a weakly prime, because it can be changed into another prime (266057051005763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133028525502861 + 133028525502862.

It is an arithmetic number, because the mean of its divisors is an integer number (133028525502862).

Almost surely, 2^{266057051005723} is an apocalyptic number.

266057051005723 is a deficient number, since it is larger than the sum of its proper divisors (1).

266057051005723 is an equidigital number, since it uses as much as digits as its factorization.

266057051005723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 266057051005723 in words is "two hundred sixty-six trillion, fifty-seven billion, fifty-one million, five thousand, seven hundred twenty-three".