11543444055 has 288 divisors, whose sum is σ = 25566428160. Its totient is φ = 4925007360.

The previous prime is 11543444051. The next prime is 11543444089. The reversal of 11543444055 is 55044434511.

11543444055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11543444055 - 2² = 11543444051 is a prime.

It is a super-2 number, since 2×11543444055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543444051) 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 287 ways as a sum of consecutive naturals, for example, 146119506 + ... + 146119584.

It is an arithmetic number, because the mean of its divisors is an integer number (88772320).

Almost surely, 2^11543444055 is an apocalyptic number.

11543444055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11543444055 is an abundant number, since it is smaller than the sum of its proper divisors (14022984105).

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

11543444055 is a wasteful number, since it uses less digits than its factorization.

11543444055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 11543444055 its reverse (55044434511), we get a palindrome (66587878566).

The spelling of 11543444055 in words is "eleven billion, five hundred forty-three million, four hundred forty-four thousand, fifty-five".