6671164517 has 2 divisors, whose sum is σ = 6671164518. Its totient is φ = 6671164516.

The previous prime is 6671164501. The next prime is 6671164561. The reversal of 6671164517 is 7154611766.

It is an a-pointer prime, because the next prime (6671164561) can be obtained adding 6671164517 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6666559201 + 4605316 = 81649^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 6671164517 - 2⁴ = 6671164501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6671164597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335582258 + 3335582259.

It is an arithmetic number, because the mean of its divisors is an integer number (3335582259).

Almost surely, 2^6671164517 is an apocalyptic number.

It is an amenable number.

6671164517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671164517 is an equidigital number, since it uses as much as digits as its factorization.

6671164517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 44.

The square root of 6671164517 is about 81677.1970442179. The cubic root of 6671164517 is about 1882.4952265304.

The spelling of 6671164517 in words is "six billion, six hundred seventy-one million, one hundred sixty-four thousand, five hundred seventeen".