11471720056 has 32 divisors (see below), whose sum is σ = 22237195680. Its totient is φ = 5543856000.

The previous prime is 11471720033. The next prime is 11471720077. The reversal of 11471720056 is 65002717411.

11471720056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11471720056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83635 + ... + 173026.

It is an arithmetic number, because the mean of its divisors is an integer number (694912365).

Almost surely, 2^11471720056 is an apocalyptic number.

It is an amenable number.

11471720056 is a deficient number, since it is larger than the sum of its proper divisors (10765475624).

11471720056 is a wasteful number, since it uses less digits than its factorization.

11471720056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256855 (or 256851 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The spelling of 11471720056 in words is "eleven billion, four hundred seventy-one million, seven hundred twenty thousand, fifty-six".