6663047701 has 2 divisors, whose sum is σ = 6663047702. Its totient is φ = 6663047700.

The previous prime is 6663047647. The next prime is 6663047707. The reversal of 6663047701 is 1077403666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5050944900 + 1612102801 = 71070^2 + 40151^2 .

It is a cyclic number.

It is not a de Polignac number, because 6663047701 - 2²³ = 6654659093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6663047707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3331523850 + 3331523851.

It is an arithmetic number, because the mean of its divisors is an integer number (3331523851).

Almost surely, 2^6663047701 is an apocalyptic number.

It is an amenable number.

6663047701 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663047701 is an equidigital number, since it uses as much as digits as its factorization.

6663047701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 6663047701 is about 81627.4935361855. The cubic root of 6663047701 is about 1881.7314384122.

The spelling of 6663047701 in words is "six billion, six hundred sixty-three million, forty-seven thousand, seven hundred one".