12532320144 has 60 divisors (see below), whose sum is σ = 35383517676. Its totient is φ = 4140466176.

The previous prime is 12532320139. The next prime is 12532320173. The reversal of 12532320144 is 44102323521.

12532320144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 341510400 + 12190809744 = 18480^2 + 110412^2 .

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 11 ways as a sum of consecutive naturals, for example, 368817 + ... + 401360.

Almost surely, 2^12532320144 is an apocalyptic number.

It is an amenable number.

12532320144 is an abundant number, since it is smaller than the sum of its proper divisors (22851197532).

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

12532320144 is a wasteful number, since it uses less digits than its factorization.

12532320144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770304 (or 770295 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12532320144 its reverse (44102323521), we get a palindrome (56634643665).

The spelling of 12532320144 in words is "twelve billion, five hundred thirty-two million, three hundred twenty thousand, one hundred forty-four".