20043653067663 has 4 divisors (see below), whose sum is σ = 26724870756888. Its totient is φ = 13362435378440.

The previous prime is 20043653067653. The next prime is 20043653067667. The reversal of 20043653067663 is 36676035634002.

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 20043653067663 - 2¹⁰ = 20043653066639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043653067667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340608844608 + ... + 3340608844613.

It is an arithmetic number, because the mean of its divisors is an integer number (6681217689222).

Almost surely, 2^{20043653067663} is an apocalyptic number.

20043653067663 is a deficient number, since it is larger than the sum of its proper divisors (6681217689225).

20043653067663 is an equidigital number, since it uses as much as digits as its factorization.

20043653067663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681217689224.

The product of its (nonzero) digits is 9797760, while the sum is 51.

The spelling of 20043653067663 in words is "twenty trillion, forty-three billion, six hundred fifty-three million, sixty-seven thousand, six hundred sixty-three".