12336534561 has 32 divisors (see below), whose sum is σ = 18205891200. Its totient is φ = 7381200384.

The previous prime is 12336534523. The next prime is 12336534563. The reversal of 12336534561 is 16543563321.

It is not a de Polignac number, because 12336534561 - 2⁷ = 12336534433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12336534563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3026821 + ... + 3030893.

It is an arithmetic number, because the mean of its divisors is an integer number (568934100).

Almost surely, 2^12336534561 is an apocalyptic number.

It is an amenable number.

12336534561 is a deficient number, since it is larger than the sum of its proper divisors (5869356639).

12336534561 is a wasteful number, since it uses less digits than its factorization.

12336534561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225.

The product of its digits is 194400, while the sum is 39.

The spelling of 12336534561 in words is "twelve billion, three hundred thirty-six million, five hundred thirty-four thousand, five hundred sixty-one".