7056166009 has 2 divisors, whose sum is σ = 7056166010. Its totient is φ = 7056166008.

The previous prime is 7056165953. The next prime is 7056166027. The reversal of 7056166009 is 9006616507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4276767609 + 2779398400 = 65397^2 + 52720^2 .

It is a cyclic number.

It is not a de Polignac number, because 7056166009 - 2⁷ = 7056165881 is a prime.

It is not a weakly prime, because it can be changed into another prime (7056166049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3528083004 + 3528083005.

It is an arithmetic number, because the mean of its divisors is an integer number (3528083005).

Almost surely, 2^7056166009 is an apocalyptic number.

It is an amenable number.

7056166009 is a deficient number, since it is larger than the sum of its proper divisors (1).

7056166009 is an equidigital number, since it uses as much as digits as its factorization.

7056166009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 7056166009 is about 84000.9881429975. The cubic root of 7056166009 is about 1918.0338315146.

The spelling of 7056166009 in words is "seven billion, fifty-six million, one hundred sixty-six thousand, nine".