6658869013 has 2 divisors, whose sum is σ = 6658869014. Its totient is φ = 6658869012.

The previous prime is 6658868987. The next prime is 6658869071. The reversal of 6658869013 is 3109688566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6354959524 + 303909489 = 79718^2 + 17433^2 .

It is a cyclic number.

It is not a de Polignac number, because 6658869013 - 2¹⁷ = 6658737941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6658869313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3329434506 + 3329434507.

It is an arithmetic number, because the mean of its divisors is an integer number (3329434507).

Almost surely, 2^6658869013 is an apocalyptic number.

It is an amenable number.

6658869013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6658869013 is an equidigital number, since it uses as much as digits as its factorization.

6658869013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 6658869013 is about 81601.8934400422. The cubic root of 6658869013 is about 1881.3379841809.

The spelling of 6658869013 in words is "six billion, six hundred fifty-eight million, eight hundred sixty-nine thousand, thirteen".