6666667407343 has 2 divisors, whose sum is σ = 6666667407344. Its totient is φ = 6666667407342.

The previous prime is 6666667407313. The next prime is 6666667407347. The reversal of 6666667407343 is 3437047666666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6666667407343 - 2¹³ = 6666667399151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6666667407347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333333703671 + 3333333703672.

It is an arithmetic number, because the mean of its divisors is an integer number (3333333703672).

Almost surely, 2^{6666667407343} is an apocalyptic number.

6666667407343 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666667407343 is an equidigital number, since it uses as much as digits as its factorization.

6666667407343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 329204736, while the sum is 64.

The spelling of 6666667407343 in words is "six trillion, six hundred sixty-six billion, six hundred sixty-seven million, four hundred seven thousand, three hundred forty-three".