6671217816833 has 2 divisors, whose sum is σ = 6671217816834. Its totient is φ = 6671217816832.

The previous prime is 6671217816799. The next prime is 6671217816877. The reversal of 6671217816833 is 3386187121766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5467211974849 + 1204005841984 = 2338207^2 + 1097272^2 .

It is a cyclic number.

It is not a de Polignac number, because 6671217816833 - 2³² = 6666922849537 is a prime.

It is not a weakly prime, because it can be changed into another prime (6971217816833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335608908416 + 3335608908417.

It is an arithmetic number, because the mean of its divisors is an integer number (3335608908417).

Almost surely, 2^{6671217816833} is an apocalyptic number.

It is an amenable number.

6671217816833 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671217816833 is an equidigital number, since it uses as much as digits as its factorization.

6671217816833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 59.

The spelling of 6671217816833 in words is "six trillion, six hundred seventy-one billion, two hundred seventeen million, eight hundred sixteen thousand, eight hundred thirty-three".