2163312133673 has 2 divisors, whose sum is σ = 2163312133674. Its totient is φ = 2163312133672.

The previous prime is 2163312133603. The next prime is 2163312133711. The reversal of 2163312133673 is 3763312133612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2162790833449 + 521300224 = 1470643^2 + 22832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163312133673 - 2³² = 2159017166377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2163312133673.

It is not a weakly prime, because it can be changed into another prime (2163312133603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081656066836 + 1081656066837.

It is an arithmetic number, because the mean of its divisors is an integer number (1081656066837).

Almost surely, 2^{2163312133673} is an apocalyptic number.

It is an amenable number.

2163312133673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163312133673 is an equidigital number, since it uses as much as digits as its factorization.

2163312133673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 41.

The spelling of 2163312133673 in words is "two trillion, one hundred sixty-three billion, three hundred twelve million, one hundred thirty-three thousand, six hundred seventy-three".