266046345521239 has 2 divisors, whose sum is σ = 266046345521240. Its totient is φ = 266046345521238.

The previous prime is 266046345521113. The next prime is 266046345521273. The reversal of 266046345521239 is 932125543640662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266046345521239 - 2²¹ = 266046343424087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266046345527239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133023172760619 + 133023172760620.

It is an arithmetic number, because the mean of its divisors is an integer number (133023172760620).

Almost surely, 2^{266046345521239} is an apocalyptic number.

266046345521239 is a deficient number, since it is larger than the sum of its proper divisors (1).

266046345521239 is an equidigital number, since it uses as much as digits as its factorization.

266046345521239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55987200, while the sum is 58.

The spelling of 266046345521239 in words is "two hundred sixty-six trillion, forty-six billion, three hundred forty-five million, five hundred twenty-one thousand, two hundred thirty-nine".