11543445255 has 16 divisors (see below), whose sum is σ = 18470844000. Its totient is φ = 6156060288.

The previous prime is 11543445239. The next prime is 11543445257. The reversal of 11543445255 is 55254434511.

11543445255 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 11543445255 - 2⁴ = 11543445239 is a prime.

It is a super-2 number, since 2×11543445255² (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 (11543445257) 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 15 ways as a sum of consecutive naturals, for example, 402121 + ... + 429869.

It is an arithmetic number, because the mean of its divisors is an integer number (1154427750).

Almost surely, 2^11543445255 is an apocalyptic number.

11543445255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11543445255 is a deficient number, since it is larger than the sum of its proper divisors (6927398745).

11543445255 is a wasteful number, since it uses less digits than its factorization.

11543445255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55490.

The product of its digits is 240000, while the sum is 39.

Adding to 11543445255 its reverse (55254434511), we get a palindrome (66797879766).

The spelling of 11543445255 in words is "eleven billion, five hundred forty-three million, four hundred forty-five thousand, two hundred fifty-five".