11144345551 has 4 divisors (see below), whose sum is σ = 11242968192. Its totient is φ = 11045722912.

The previous prime is 11144345507. The next prime is 11144345581. The reversal of 11144345551 is 15554344111.

11144345551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11144345551 - 2⁹ = 11144345039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144345581) 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 3 ways as a sum of consecutive naturals, for example, 49311151 + ... + 49311376.

It is an arithmetic number, because the mean of its divisors is an integer number (2810742048).

Almost surely, 2^11144345551 is an apocalyptic number.

11144345551 is a deficient number, since it is larger than the sum of its proper divisors (98622641).

11144345551 is an equidigital number, since it uses as much as digits as its factorization.

11144345551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98622640.

The product of its digits is 24000, while the sum is 34.

Adding to 11144345551 its reverse (15554344111), we get a palindrome (26698689662).

The spelling of 11144345551 in words is "eleven billion, one hundred forty-four million, three hundred forty-five thousand, five hundred fifty-one".