6670736669 has 2 divisors, whose sum is σ = 6670736670. Its totient is φ = 6670736668.

The previous prime is 6670736659. The next prime is 6670736701. The reversal of 6670736669 is 9666370766.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6491524900 + 179211769 = 80570^2 + 13387^2 .

It is a cyclic number.

It is not a de Polignac number, because 6670736669 - 2²⁰ = 6669688093 is a prime.

It is a super-2 number, since 2×6670736669² = 88997455414282431122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6670736659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335368334 + 3335368335.

It is an arithmetic number, because the mean of its divisors is an integer number (3335368335).

Almost surely, 2^6670736669 is an apocalyptic number.

It is an amenable number.

6670736669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670736669 is an equidigital number, since it uses as much as digits as its factorization.

6670736669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 56.

The square root of 6670736669 is about 81674.5778623924. The cubic root of 6670736669 is about 1882.4549817309.

The spelling of 6670736669 in words is "six billion, six hundred seventy million, seven hundred thirty-six thousand, six hundred sixty-nine".