7116565021 has 2 divisors, whose sum is σ = 7116565022. Its totient is φ = 7116565020.

The previous prime is 7116565013. The next prime is 7116565111. The reversal of 7116565021 is 1205656117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4493691225 + 2622873796 = 67035^2 + 51214^2 .

It is a cyclic number.

It is not a de Polignac number, because 7116565021 - 2³ = 7116565013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7116565921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558282510 + 3558282511.

It is an arithmetic number, because the mean of its divisors is an integer number (3558282511).

Almost surely, 2^7116565021 is an apocalyptic number.

It is an amenable number.

7116565021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7116565021 is an equidigital number, since it uses as much as digits as its factorization.

7116565021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 7116565021 is about 84359.7357807621. The cubic root of 7116565021 is about 1923.4909201464.

The spelling of 7116565021 in words is "seven billion, one hundred sixteen million, five hundred sixty-five thousand, twenty-one".