11553040556 has 12 divisors (see below), whose sum is σ = 20248786992. Its totient is φ = 5767672848.

The previous prime is 11553040529. The next prime is 11553040579. The reversal of 11553040556 is 65504035511.

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, 2208920 + ... + 2214143.

It is an arithmetic number, because the mean of its divisors is an integer number (1687398916).

Almost surely, 2^11553040556 is an apocalyptic number.

It is an amenable number.

11553040556 is a deficient number, since it is larger than the sum of its proper divisors (8695746436).

11553040556 is a wasteful number, since it uses less digits than its factorization.

11553040556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423720 (or 4423718 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 11553040556 in words is "eleven billion, five hundred fifty-three million, forty thousand, five hundred fifty-six".