6213661645223 has 16 divisors (see below), whose sum is σ = 6439317469440. Its totient is φ = 5989595673600.

The previous prime is 6213661645181. The next prime is 6213661645259. The reversal of 6213661645223 is 3225461663126.

It is a cyclic number.

It is not a de Polignac number, because 6213661645223 - 2²⁸ = 6213393209767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6213661645273) 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 15 ways as a sum of consecutive naturals, for example, 27098033 + ... + 27326373.

It is an arithmetic number, because the mean of its divisors is an integer number (402457341840).

Almost surely, 2^{6213661645223} is an apocalyptic number.

6213661645223 is a deficient number, since it is larger than the sum of its proper divisors (225655824217).

6213661645223 is a wasteful number, since it uses less digits than its factorization.

6213661645223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231818.

The product of its digits is 1866240, while the sum is 47.

The spelling of 6213661645223 in words is "six trillion, two hundred thirteen billion, six hundred sixty-one million, six hundred forty-five thousand, two hundred twenty-three".