11155415539 has 2 divisors, whose sum is σ = 11155415540. Its totient is φ = 11155415538.

The previous prime is 11155415507. The next prime is 11155415543. The reversal of 11155415539 is 93551455111.

11155415539 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 11155415539 - 2⁵ = 11155415507 is a prime.

It is not a weakly prime, because it can be changed into another prime (11155415569) 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, 5577707769 + 5577707770.

It is an arithmetic number, because the mean of its divisors is an integer number (5577707770).

Almost surely, 2^11155415539 is an apocalyptic number.

11155415539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155415539 is an equidigital number, since it uses as much as digits as its factorization.

11155415539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 40.

The spelling of 11155415539 in words is "eleven billion, one hundred fifty-five million, four hundred fifteen thousand, five hundred thirty-nine".