11471208556 has 72 divisors (see below), whose sum is σ = 21221766720. Its totient is φ = 5421655008.

The previous prime is 11471208527. The next prime is 11471208559. The reversal of 11471208556 is 65580217411.

11471208556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11471208559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64084875 + ... + 64085053.

It is an arithmetic number, because the mean of its divisors is an integer number (294746760).

Almost surely, 2^11471208556 is an apocalyptic number.

It is an amenable number.

11471208556 is a deficient number, since it is larger than the sum of its proper divisors (9750558164).

11471208556 is a wasteful number, since it uses less digits than its factorization.

11471208556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 11471208556 in words is "eleven billion, four hundred seventy-one million, two hundred eight thousand, five hundred fifty-six".