2164644843203 has 2 divisors, whose sum is σ = 2164644843204. Its totient is φ = 2164644843202.

The previous prime is 2164644843161. The next prime is 2164644843281. The reversal of 2164644843203 is 3023484464612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164644843203 - 2¹² = 2164644839107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164644843503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082322421601 + 1082322421602.

It is an arithmetic number, because the mean of its divisors is an integer number (1082322421602).

Almost surely, 2^{2164644843203} is an apocalyptic number.

2164644843203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164644843203 is an equidigital number, since it uses as much as digits as its factorization.

2164644843203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2654208, while the sum is 47.

The spelling of 2164644843203 in words is "two trillion, one hundred sixty-four billion, six hundred forty-four million, eight hundred forty-three thousand, two hundred three".