11553868012 has 12 divisors (see below), whose sum is σ = 20348055280. Its totient is φ = 5740137936.

The previous prime is 11553868009. The next prime is 11553868021. The reversal of 11553868012 is 21086835511.

It is a happy 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, 9198312 + ... + 9199567.

Almost surely, 2^11553868012 is an apocalyptic number.

It is an amenable number.

11553868012 is a deficient number, since it is larger than the sum of its proper divisors (8794187268).

11553868012 is a wasteful number, since it uses less digits than its factorization.

11553868012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398040 (or 18398038 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 11553868012 in words is "eleven billion, five hundred fifty-three million, eight hundred sixty-eight thousand, twelve".