266364463663 has 4 divisors (see below), whose sum is σ = 266394675960. Its totient is φ = 266334251368.

The previous prime is 266364463657. The next prime is 266364463669. The reversal of 266364463663 is 366364463662.

266364463663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (266364463657) and next prime (266364463669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266364463663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266364463669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15092920 + ... + 15110557.

It is an arithmetic number, because the mean of its divisors is an integer number (66598668990).

Almost surely, 2^266364463663 is an apocalyptic number.

266364463663 is a deficient number, since it is larger than the sum of its proper divisors (30212297).

266364463663 is an equidigital number, since it uses as much as digits as its factorization.

266364463663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30212296.

The product of its digits is 40310784, while the sum is 55.

Subtracting 266364463663 from its reverse (366364463662), we obtain a palindrome (99999999999).

The spelling of 266364463663 in words is "two hundred sixty-six billion, three hundred sixty-four million, four hundred sixty-three thousand, six hundred sixty-three".