11128081307544 has 48 divisors (see below), whose sum is σ = 30220675012320. Its totient is φ = 3699253177920.

The previous prime is 11128081307533. The next prime is 11128081307557. The reversal of 11128081307544 is 44570318082111.

11128081307544 is a `hidden beast` number, since 1 + 1 + 1 + 28 + 0 + 81 + 3 + 0 + 7 + 544 = 666.

It is a super-2 number, since 2×11128081307544² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11128081307544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210541267 + ... + 210594114.

It is an arithmetic number, because the mean of its divisors is an integer number (629597396090).

Almost surely, 2^{11128081307544} is an apocalyptic number.

It is an amenable number.

11128081307544 is an abundant number, since it is smaller than the sum of its proper divisors (19092593704776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11128081307544 is a wasteful number, since it uses less digits than its factorization.

11128081307544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421135760 (or 421135753 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

Adding to 11128081307544 its reverse (44570318082111), we get a palindrome (55698399389655).

The spelling of 11128081307544 in words is "eleven trillion, one hundred twenty-eight billion, eighty-one million, three hundred seven thousand, five hundred forty-four".