26664032113 has 16 divisors (see below), whose sum is σ = 27088837776. Its totient is φ = 26242744320.

The previous prime is 26664032093. The next prime is 26664032123. The reversal of 26664032113 is 31123046662.

It can be written as a sum of positive squares in 8 ways, for example, as 3245239089 + 23418793024 = 56967^2 + 153032^2 .

It is a cyclic number.

It is not a de Polignac number, because 26664032113 - 2⁵ = 26664032081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26664032123) 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, 18003333 + ... + 18004813.

It is an arithmetic number, because the mean of its divisors is an integer number (1693052361).

Almost surely, 2^26664032113 is an apocalyptic number.

It is an amenable number.

26664032113 is a deficient number, since it is larger than the sum of its proper divisors (424805663).

26664032113 is a wasteful number, since it uses less digits than its factorization.

26664032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 26664032113 its reverse (31123046662), we get a palindrome (57787078775).

The spelling of 26664032113 in words is "twenty-six billion, six hundred sixty-four million, thirty-two thousand, one hundred thirteen".