13661526233 has 2 divisors, whose sum is σ = 13661526234. Its totient is φ = 13661526232.

The previous prime is 13661526209. The next prime is 13661526251. The reversal of 13661526233 is 33262516631.

13661526233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11267185609 + 2394340624 = 106147^2 + 48932^2 .

It is a cyclic number.

It is not a de Polignac number, because 13661526233 - 2¹⁰ = 13661525209 is a prime.

It is not a weakly prime, because it can be changed into another prime (13661526283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830763116 + 6830763117.

It is an arithmetic number, because the mean of its divisors is an integer number (6830763117).

Almost surely, 2^13661526233 is an apocalyptic number.

It is an amenable number.

13661526233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13661526233 is an equidigital number, since it uses as much as digits as its factorization.

13661526233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The spelling of 13661526233 in words is "thirteen billion, six hundred sixty-one million, five hundred twenty-six thousand, two hundred thirty-three".