11129006865 has 16 divisors (see below), whose sum is σ = 18108216000. Its totient is φ = 5834868672.

The previous prime is 11129006839. The next prime is 11129006873. The reversal of 11129006865 is 56860092111.

11129006865 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 11129006865 - 2⁹ = 11129006353 is a prime.

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, 6286690 + ... + 6288459.

It is an arithmetic number, because the mean of its divisors is an integer number (1131763500).

Almost surely, 2^11129006865 is an apocalyptic number.

11129006865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11129006865 is a deficient number, since it is larger than the sum of its proper divisors (6979209135).

11129006865 is a wasteful number, since it uses less digits than its factorization.

11129006865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12575216.

The product of its (nonzero) digits is 25920, while the sum is 39.

Adding to 11129006865 its reverse (56860092111), we get a palindrome (67989098976).

The spelling of 11129006865 in words is "eleven billion, one hundred twenty-nine million, six thousand, eight hundred sixty-five".