26666163223 has 16 divisors (see below), whose sum is σ = 31863960576. Its totient is φ = 21819409920.

The previous prime is 26666163217. The next prime is 26666163247. The reversal of 26666163223 is 32236166662.

It is not a de Polignac number, because 26666163223 - 2³³ = 18076228631 is a prime.

It is a super-2 number, since 2×26666163223² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26666163223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26666163283) 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 15 ways as a sum of consecutive naturals, for example, 83658 + ... + 245623.

It is an arithmetic number, because the mean of its divisors is an integer number (1991497536).

Almost surely, 2^26666163223 is an apocalyptic number.

26666163223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

26666163223 is a deficient number, since it is larger than the sum of its proper divisors (5197797353).

26666163223 is a wasteful number, since it uses less digits than its factorization.

26666163223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329814.

The product of its digits is 559872, while the sum is 43.

The spelling of 26666163223 in words is "twenty-six billion, six hundred sixty-six million, one hundred sixty-three thousand, two hundred twenty-three".