11722844668 has 12 divisors (see below), whose sum is σ = 20662568920. Its totient is φ = 5819253552.

The previous prime is 11722844659. The next prime is 11722844671. The reversal of 11722844668 is 86644822711.

It is a happy number.

It is a super-2 number, since 2×11722844668² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10541571 + ... + 10542682.

Almost surely, 2^11722844668 is an apocalyptic number.

It is an amenable number.

11722844668 is a deficient number, since it is larger than the sum of its proper divisors (8939724252).

11722844668 is a wasteful number, since it uses less digits than its factorization.

11722844668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21084396 (or 21084394 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The spelling of 11722844668 in words is "eleven billion, seven hundred twenty-two million, eight hundred forty-four thousand, six hundred sixty-eight".