6686962655441 has 2 divisors, whose sum is σ = 6686962655442. Its totient is φ = 6686962655440.

The previous prime is 6686962655407. The next prime is 6686962655449. The reversal of 6686962655441 is 1445562696866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5853568942225 + 833393713216 = 2419415^2 + 912904^2 .

It is a cyclic number.

It is not a de Polignac number, because 6686962655441 - 2⁶ = 6686962655377 is a prime.

It is not a weakly prime, because it can be changed into another prime (6686962655449) 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, 3343481327720 + 3343481327721.

It is an arithmetic number, because the mean of its divisors is an integer number (3343481327721).

Almost surely, 2^{6686962655441} is an apocalyptic number.

It is an amenable number.

6686962655441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6686962655441 is an equidigital number, since it uses as much as digits as its factorization.

6686962655441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 447897600, while the sum is 68.

The spelling of 6686962655441 in words is "six trillion, six hundred eighty-six billion, nine hundred sixty-two million, six hundred fifty-five thousand, four hundred forty-one".