12466545561543 has 4 divisors (see below), whose sum is σ = 16622060748728. Its totient is φ = 8311030374360.

The previous prime is 12466545561529. The next prime is 12466545561553. The reversal of 12466545561543 is 34516554566421.

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

It is not a de Polignac number, because 12466545561543 - 2⁶ = 12466545561479 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 (12466545561553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077757593588 + ... + 2077757593593.

It is an arithmetic number, because the mean of its divisors is an integer number (4155515187182).

Almost surely, 2^{12466545561543} is an apocalyptic number.

12466545561543 is a deficient number, since it is larger than the sum of its proper divisors (4155515187185).

12466545561543 is an equidigital number, since it uses as much as digits as its factorization.

12466545561543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155515187184.

The product of its digits is 51840000, while the sum is 57.

The spelling of 12466545561543 in words is "twelve trillion, four hundred sixty-six billion, five hundred forty-five million, five hundred sixty-one thousand, five hundred forty-three".