12645116333 has 4 divisors (see below), whose sum is σ = 12645857340. Its totient is φ = 12644375328.

The previous prime is 12645116251. The next prime is 12645116371. The reversal of 12645116333 is 33361154621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2236627849 + 10408488484 = 47293^2 + 102022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12645116333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12645116293 and 12645116302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645116233) 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, 344288 + ... + 379241.

It is an arithmetic number, because the mean of its divisors is an integer number (3161464335).

Almost surely, 2^12645116333 is an apocalyptic number.

It is an amenable number.

12645116333 is a deficient number, since it is larger than the sum of its proper divisors (741007).

12645116333 is an equidigital number, since it uses as much as digits as its factorization.

12645116333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741006.

The product of its digits is 38880, while the sum is 35.

The spelling of 12645116333 in words is "twelve billion, six hundred forty-five million, one hundred sixteen thousand, three hundred thirty-three".