20344133660243 has 8 divisors (see below), whose sum is σ = 20545709448816. Its totient is φ = 20142560788000.

The previous prime is 20344133660233. The next prime is 20344133660251. The reversal of 20344133660243 is 34206633144302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344133660243 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 20344133660243.

It is not an unprimeable number, because it can be changed into a prime (20344133660233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14955053 + ... + 16258593.

It is an arithmetic number, because the mean of its divisors is an integer number (2568213681102).

Almost surely, 2^{20344133660243} is an apocalyptic number.

20344133660243 is a deficient number, since it is larger than the sum of its proper divisors (201575788573).

20344133660243 is a wasteful number, since it uses less digits than its factorization.

20344133660243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458165.

The product of its (nonzero) digits is 746496, while the sum is 41.

The spelling of 20344133660243 in words is "twenty trillion, three hundred forty-four billion, one hundred thirty-three million, six hundred sixty thousand, two hundred forty-three".