11123649617 has 16 divisors (see below), whose sum is σ = 12111360000. Its totient is φ = 10177546320.

The previous prime is 11123649611. The next prime is 11123649619. The reversal of 11123649617 is 71694632111.

It is a cyclic number.

It is not a de Polignac number, because 11123649617 - 2¹⁰ = 11123648593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123649611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274988 + ... + 312834.

It is an arithmetic number, because the mean of its divisors is an integer number (756960000).

Almost surely, 2^11123649617 is an apocalyptic number.

It is an amenable number.

11123649617 is a deficient number, since it is larger than the sum of its proper divisors (987710383).

11123649617 is a wasteful number, since it uses less digits than its factorization.

11123649617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38396.

The product of its digits is 54432, while the sum is 41.

The spelling of 11123649617 in words is "eleven billion, one hundred twenty-three million, six hundred forty-nine thousand, six hundred seventeen".