11111115005 has 16 divisors (see below), whose sum is σ = 13662432000. Its totient is φ = 8669619840.

The previous prime is 11111114951. The next prime is 11111115049. The reversal of 11111115005 is 50051111111.

11111115005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11111115005 - 2⁶ = 11111114941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1101776 + ... + 1111814.

It is an arithmetic number, because the mean of its divisors is an integer number (853902000).

Almost surely, 2^11111115005 is an apocalyptic number.

It is an amenable number.

11111115005 is a deficient number, since it is larger than the sum of its proper divisors (2551316995).

11111115005 is a wasteful number, since it uses less digits than its factorization.

11111115005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15484.

The product of its (nonzero) digits is 25, while the sum is 17.

Adding to 11111115005 its reverse (50051111111), we get a palindrome (61162226116).

The spelling of 11111115005 in words is "eleven billion, one hundred eleven million, one hundred fifteen thousand, five".