266004161234563 has 2 divisors, whose sum is σ = 266004161234564. Its totient is φ = 266004161234562.

The previous prime is 266004161234551. The next prime is 266004161234599. The reversal of 266004161234563 is 365432161400662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266004161234563 is a prime.

It is not a weakly prime, because it can be changed into another prime (266004261234563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133002080617281 + 133002080617282.

It is an arithmetic number, because the mean of its divisors is an integer number (133002080617282).

Almost surely, 2^{266004161234563} is an apocalyptic number.

266004161234563 is a deficient number, since it is larger than the sum of its proper divisors (1).

266004161234563 is an equidigital number, since it uses as much as digits as its factorization.

266004161234563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 266004161234563 in words is "two hundred sixty-six trillion, four billion, one hundred sixty-one million, two hundred thirty-four thousand, five hundred sixty-three".