11655135563 has 2 divisors, whose sum is σ = 11655135564. Its totient is φ = 11655135562.

The previous prime is 11655135551. The next prime is 11655135571. The reversal of 11655135563 is 36553155611.

It is a happy number.

11655135563 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 is a cyclic number.

It is not a de Polignac number, because 11655135563 - 2⁸ = 11655135307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11655135563.

It is not a weakly prime, because it can be changed into another prime (11655165563) 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, 5827567781 + 5827567782.

It is an arithmetic number, because the mean of its divisors is an integer number (5827567782).

Almost surely, 2^11655135563 is an apocalyptic number.

11655135563 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655135563 is an equidigital number, since it uses as much as digits as its factorization.

11655135563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 202500, while the sum is 41.

The spelling of 11655135563 in words is "eleven billion, six hundred fifty-five million, one hundred thirty-five thousand, five hundred sixty-three".