26656402223 has 16 divisors (see below), whose sum is σ = 29398179744. Its totient is φ = 23968988160.

The previous prime is 26656402219. The next prime is 26656402229. The reversal of 26656402223 is 32220465662.

It is a cyclic number.

It is not a de Polignac number, because 26656402223 - 2² = 26656402219 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 (26656402229) 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, 385511 + ... + 449367.

It is an arithmetic number, because the mean of its divisors is an integer number (1837386234).

Almost surely, 2^26656402223 is an apocalyptic number.

26656402223 is a deficient number, since it is larger than the sum of its proper divisors (2741777521).

26656402223 is a wasteful number, since it uses less digits than its factorization.

26656402223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64282.

The product of its (nonzero) digits is 207360, while the sum is 38.

Adding to 26656402223 its reverse (32220465662), we get a palindrome (58876867885).

The spelling of 26656402223 in words is "twenty-six billion, six hundred fifty-six million, four hundred two thousand, two hundred twenty-three".