6664884701 has 2 divisors, whose sum is σ = 6664884702. Its totient is φ = 6664884700.

The previous prime is 6664884617. The next prime is 6664884727. The reversal of 6664884701 is 1074884666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5116540900 + 1548343801 = 71530^2 + 39349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6664884701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6664884701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664884781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332442350 + 3332442351.

It is an arithmetic number, because the mean of its divisors is an integer number (3332442351).

Almost surely, 2^6664884701 is an apocalyptic number.

It is an amenable number.

6664884701 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664884701 is an equidigital number, since it uses as much as digits as its factorization.

6664884701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 6664884701 is about 81638.7450969207. The cubic root of 6664884701 is about 1881.9043534295.

The spelling of 6664884701 in words is "six billion, six hundred sixty-four million, eight hundred eighty-four thousand, seven hundred one".