11103680185 has 16 divisors (see below), whose sum is σ = 14386291920. Its totient is φ = 8178543360.

The previous prime is 11103680179. The next prime is 11103680239. The reversal of 11103680185 is 58108630111.

It can be written as a sum of positive squares in 8 ways, for example, as 475719721 + 10627960464 = 21811^2 + 103092^2 .

It is not a de Polignac number, because 11103680185 - 2¹⁷ = 11103549113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11103680185.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194286 + ... + 244855.

It is an arithmetic number, because the mean of its divisors is an integer number (899143245).

Almost surely, 2^11103680185 is an apocalyptic number.

It is an amenable number.

11103680185 is a deficient number, since it is larger than the sum of its proper divisors (3282611735).

11103680185 is a wasteful number, since it uses less digits than its factorization.

11103680185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439548.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 11103680185 in words is "eleven billion, one hundred three million, six hundred eighty thousand, one hundred eighty-five".