13144111440 has 40 divisors (see below), whose sum is σ = 40746746208. Its totient is φ = 3505096320.

The previous prime is 13144111429. The next prime is 13144111469. The reversal of 13144111440 is 4411144131.

13144111440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13144111440.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27383326 + ... + 27383805.

Almost surely, 2^13144111440 is an apocalyptic number.

13144111440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144111440 is an abundant number, since it is smaller than the sum of its proper divisors (27602634768).

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

13144111440 is a wasteful number, since it uses less digits than its factorization.

13144111440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54767147 (or 54767141 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 13144111440 its reverse (4411144131), we get a palindrome (17555255571).

The spelling of 13144111440 in words is "thirteen billion, one hundred forty-four million, one hundred eleven thousand, four hundred forty".