11471441144 has 32 divisors (see below), whose sum is σ = 22258249200. Its totient is φ = 5536043520.

The previous prime is 11471441027. The next prime is 11471441171. The reversal of 11471441144 is 44114417411.

It is a self number, because there is not a number n which added to its sum of digits gives 11471441144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865979 + ... + 879125.

Almost surely, 2^11471441144 is an apocalyptic number.

It is an amenable number.

11471441144 is a deficient number, since it is larger than the sum of its proper divisors (10786808056).

11471441144 is a wasteful number, since it uses less digits than its factorization.

11471441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16943 (or 16939 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

Adding to 11471441144 its reverse (44114417411), we get a palindrome (55585858555).

The spelling of 11471441144 in words is "eleven billion, four hundred seventy-one million, four hundred forty-one thousand, one hundred forty-four".