11118680649 has 16 divisors (see below), whose sum is σ = 17040124800. Its totient is φ = 7156851408.

The previous prime is 11118680611. The next prime is 11118680681. The reversal of 11118680649 is 94608681111.

It is a happy number.

11118680649 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 11118680649 - 2⁸ = 11118680393 is a prime.

It is a super-2 number, since 2×11118680649² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11118680609) by changing a digit.

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, 7099269 + ... + 7100834.

It is an arithmetic number, because the mean of its divisors is an integer number (1065007800).

Almost surely, 2^11118680649 is an apocalyptic number.

It is an amenable number.

11118680649 is a deficient number, since it is larger than the sum of its proper divisors (5921444151).

11118680649 is a wasteful number, since it uses less digits than its factorization.

11118680649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200141 (or 14200135 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 11118680649 in words is "eleven billion, one hundred eighteen million, six hundred eighty thousand, six hundred forty-nine".