2646666343 has 2 divisors, whose sum is σ = 2646666344. Its totient is φ = 2646666342.

The previous prime is 2646666331. The next prime is 2646666359. The reversal of 2646666343 is 3436666462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2646666343 - 2⁵ = 2646666311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2646666293 and 2646666302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2646660343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323333171 + 1323333172.

It is an arithmetic number, because the mean of its divisors is an integer number (1323333172).

Almost surely, 2^2646666343 is an apocalyptic number.

2646666343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646666343 is an equidigital number, since it uses as much as digits as its factorization.

2646666343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 46.

The square root of 2646666343 is about 51445.7611762135. The cubic root of 2646666343 is about 1383.2469826327.

The spelling of 2646666343 in words is "two billion, six hundred forty-six million, six hundred sixty-six thousand, three hundred forty-three".