12466545561544 has 32 divisors (see below), whose sum is σ = 23459036952600. Its totient is φ = 6210804418560.

The previous prime is 12466545561529. The next prime is 12466545561553. The reversal of 12466545561544 is 44516554566421.

It can be written as a sum of positive squares in 4 ways, for example, as 9257037481444 + 3209508080100 = 3042538^2 + 1791510^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53784652 + ... + 54015940.

Almost surely, 2^{12466545561544} is an apocalyptic number.

It is an amenable number.

12466545561544 is a deficient number, since it is larger than the sum of its proper divisors (10992491391056).

12466545561544 is a wasteful number, since it uses less digits than its factorization.

12466545561544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255553 (or 255549 counting only the distinct ones).

The product of its digits is 69120000, while the sum is 58.

The spelling of 12466545561544 in words is "twelve trillion, four hundred sixty-six billion, five hundred forty-five million, five hundred sixty-one thousand, five hundred forty-four".