6522666868667 has 2 divisors, whose sum is σ = 6522666868668. Its totient is φ = 6522666868666.

The previous prime is 6522666868643. The next prime is 6522666868741. The reversal of 6522666868667 is 7668686662256.

It is an a-pointer prime, because the next prime (6522666868741) can be obtained adding 6522666868667 to its sum of digits (74).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6522666868667 - 2²⁰ = 6522665820091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6522666868594 and 6522666868603.

It is not a weakly prime, because it can be changed into another prime (6522666868607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3261333434333 + 3261333434334.

It is an arithmetic number, because the mean of its divisors is an integer number (3261333434334).

Almost surely, 2^{6522666868667} is an apocalyptic number.

6522666868667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6522666868667 is an equidigital number, since it uses as much as digits as its factorization.

6522666868667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2508226560, while the sum is 74.

The spelling of 6522666868667 in words is "six trillion, five hundred twenty-two billion, six hundred sixty-six million, eight hundred sixty-eight thousand, six hundred sixty-seven".