12533566411 has 4 divisors (see below), whose sum is σ = 12745999800. Its totient is φ = 12321133024.

The previous prime is 12533566403. The next prime is 12533566439. The reversal of 12533566411 is 11466533521.

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 12533566411 - 2³ = 12533566403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12533566481) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 106216606 + ... + 106216723.

It is an arithmetic number, because the mean of its divisors is an integer number (3186499950).

Almost surely, 2^12533566411 is an apocalyptic number.

12533566411 is a deficient number, since it is larger than the sum of its proper divisors (212433389).

12533566411 is an equidigital number, since it uses as much as digits as its factorization.

12533566411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212433388.

The product of its digits is 64800, while the sum is 37.

The spelling of 12533566411 in words is "twelve billion, five hundred thirty-three million, five hundred sixty-six thousand, four hundred eleven".