11668889912 has 16 divisors (see below), whose sum is σ = 22205724360. Its totient is φ = 5747363424.

The previous prime is 11668889899. The next prime is 11668889917. The reversal of 11668889912 is 21998886611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668889917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10884623 + ... + 10885694.

Almost surely, 2^11668889912 is an apocalyptic number.

It is an amenable number.

11668889912 is a deficient number, since it is larger than the sum of its proper divisors (10536834448).

11668889912 is a wasteful number, since it uses less digits than its factorization.

11668889912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21770390 (or 21770386 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 59.

The spelling of 11668889912 in words is "eleven billion, six hundred sixty-eight million, eight hundred eighty-nine thousand, nine hundred twelve".