7066668331 has 2 divisors, whose sum is σ = 7066668332. Its totient is φ = 7066668330.

The previous prime is 7066668311. The next prime is 7066668359. The reversal of 7066668331 is 1338666607.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7066668331 - 2⁵ = 7066668299 is a prime.

It is a super-2 number, since 2×7066668331² = 99875602600716651122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7066668311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3533334165 + 3533334166.

It is an arithmetic number, because the mean of its divisors is an integer number (3533334166).

Almost surely, 2^7066668331 is an apocalyptic number.

7066668331 is a deficient number, since it is larger than the sum of its proper divisors (1).

7066668331 is an equidigital number, since it uses as much as digits as its factorization.

7066668331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 7066668331 is about 84063.4779853891. The cubic root of 7066668331 is about 1918.9849534691.

The spelling of 7066668331 in words is "seven billion, sixty-six million, six hundred sixty-eight thousand, three hundred thirty-one".