6671165506601 has 2 divisors, whose sum is σ = 6671165506602. Its totient is φ = 6671165506600.

The previous prime is 6671165506597. The next prime is 6671165506633. The reversal of 6671165506601 is 1066055611766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6668815584025 + 2349922576 = 2582405^2 + 48476^2 .

It is a cyclic number.

It is not a de Polignac number, because 6671165506601 - 2² = 6671165506597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6671165506601.

It is not a weakly prime, because it can be changed into another prime (6671165506501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335582753300 + 3335582753301.

It is an arithmetic number, because the mean of its divisors is an integer number (3335582753301).

Almost surely, 2^{6671165506601} is an apocalyptic number.

It is an amenable number.

6671165506601 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671165506601 is an equidigital number, since it uses as much as digits as its factorization.

6671165506601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 6671165506601 in words is "six trillion, six hundred seventy-one billion, one hundred sixty-five million, five hundred six thousand, six hundred one".