11155354517 has 2 divisors, whose sum is σ = 11155354518. Its totient is φ = 11155354516.

The previous prime is 11155354493. The next prime is 11155354523. The reversal of 11155354517 is 71545355111.

11155354517 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., 7068437476 + 4086917041 = 84074^2 + 63929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11155354517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11155354547) 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, 5577677258 + 5577677259.

It is an arithmetic number, because the mean of its divisors is an integer number (5577677259).

Almost surely, 2^11155354517 is an apocalyptic number.

It is an amenable number.

11155354517 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155354517 is an equidigital number, since it uses as much as digits as its factorization.

11155354517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52500, while the sum is 38.

The spelling of 11155354517 in words is "eleven billion, one hundred fifty-five million, three hundred fifty-four thousand, five hundred seventeen".