6344661312133 has 4 divisors (see below), whose sum is σ = 6407479741068. Its totient is φ = 6281842883200.

The previous prime is 6344661312127. The next prime is 6344661312167. The reversal of 6344661312133 is 3312131664436.

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 5783649826084 + 561011486049 = 2404922^2 + 749007^2 .

It is a cyclic number.

It is not a de Polignac number, because 6344661312133 - 2⁹ = 6344661311621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6344661312133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6344661312173) 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, 31409214316 + ... + 31409214517.

It is an arithmetic number, because the mean of its divisors is an integer number (1601869935267).

Almost surely, 2^{6344661312133} is an apocalyptic number.

It is an amenable number.

6344661312133 is a deficient number, since it is larger than the sum of its proper divisors (62818428935).

6344661312133 is a wasteful number, since it uses less digits than its factorization.

6344661312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62818428934.

The product of its digits is 559872, while the sum is 43.

Adding to 6344661312133 its reverse (3312131664436), we get a palindrome (9656792976569).

The spelling of 6344661312133 in words is "six trillion, three hundred forty-four billion, six hundred sixty-one million, three hundred twelve thousand, one hundred thirty-three".