11165535105 has 16 divisors (see below), whose sum is σ = 17869749120. Its totient is φ = 5953321088.

The previous prime is 11165535097. The next prime is 11165535133. The reversal of 11165535105 is 50153556111.

It is a cyclic number.

It is not a de Polignac number, because 11165535105 - 2³ = 11165535097 is a prime.

It is a super-2 number, since 2×11165535105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44292 + ... + 155861.

It is an arithmetic number, because the mean of its divisors is an integer number (1116859320).

Almost surely, 2^11165535105 is an apocalyptic number.

11165535105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11165535105 is a deficient number, since it is larger than the sum of its proper divisors (6704214015).

11165535105 is a wasteful number, since it uses less digits than its factorization.

11165535105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203880.

The product of its (nonzero) digits is 11250, while the sum is 33.

The spelling of 11165535105 in words is "eleven billion, one hundred sixty-five million, five hundred thirty-five thousand, one hundred five".