11113556668 has 48 divisors (see below), whose sum is σ = 21671516160. Its totient is φ = 4966315200.

The previous prime is 11113556609. The next prime is 11113556687. The reversal of 11113556668 is 86665531111.

It is a super-2 number, since 2×11113556668² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 10.

It is a congruent number.

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, 15523 + ... + 149893.

It is an arithmetic number, because the mean of its divisors is an integer number (451489920).

Almost surely, 2^11113556668 is an apocalyptic number.

It is an amenable number.

11113556668 is a deficient number, since it is larger than the sum of its proper divisors (10557959492).

11113556668 is a wasteful number, since it uses less digits than its factorization.

11113556668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134458 (or 134456 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The spelling of 11113556668 in words is "eleven billion, one hundred thirteen million, five hundred fifty-six thousand, six hundred sixty-eight".