6670012571 has 2 divisors, whose sum is σ = 6670012572. Its totient is φ = 6670012570.

The previous prime is 6670012561. The next prime is 6670012597. The reversal of 6670012571 is 1752100766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6670012571 is a prime.

It is not a weakly prime, because it can be changed into another prime (6670012511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335006285 + 3335006286.

It is an arithmetic number, because the mean of its divisors is an integer number (3335006286).

Almost surely, 2^6670012571 is an apocalyptic number.

6670012571 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670012571 is an equidigital number, since it uses as much as digits as its factorization.

6670012571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 6670012571 is about 81670.1449184462. The cubic root of 6670012571 is about 1882.3868667546.

The spelling of 6670012571 in words is "six billion, six hundred seventy million, twelve thousand, five hundred seventy-one".