11544434455 has 16 divisors (see below), whose sum is σ = 14229903744. Its totient is φ = 8986766080.

The previous prime is 11544434423. The next prime is 11544434471. The reversal of 11544434455 is 55443444511.

It is not a de Polignac number, because 11544434455 - 2⁵ = 11544434423 is a prime.

It is a super-2 number, since 2×11544434455² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101326 + ... + 182635.

It is an arithmetic number, because the mean of its divisors is an integer number (889368984).

Almost surely, 2^11544434455 is an apocalyptic number.

11544434455 is a deficient number, since it is larger than the sum of its proper divisors (2685469289).

11544434455 is a wasteful number, since it uses less digits than its factorization.

11544434455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284186.

The product of its digits is 384000, while the sum is 40.

Adding to 11544434455 its reverse (55443444511), we get a palindrome (66987878966).

The spelling of 11544434455 in words is "eleven billion, five hundred forty-four million, four hundred thirty-four thousand, four hundred fifty-five".