266012140263563 has 2 divisors, whose sum is σ = 266012140263564. Its totient is φ = 266012140263562.

The previous prime is 266012140263539. The next prime is 266012140263629. The reversal of 266012140263563 is 365362041210662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266012140263563 - 2³² = 266007845296267 is a prime.

It is not a weakly prime, because it can be changed into another prime (266012130263563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133006070131781 + 133006070131782.

It is an arithmetic number, because the mean of its divisors is an integer number (133006070131782).

Almost surely, 2^{266012140263563} is an apocalyptic number.

266012140263563 is a deficient number, since it is larger than the sum of its proper divisors (1).

266012140263563 is an equidigital number, since it uses as much as digits as its factorization.

266012140263563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 266012140263563 in words is "two hundred sixty-six trillion, twelve billion, one hundred forty million, two hundred sixty-three thousand, five hundred sixty-three".