6641531363 has 2 divisors, whose sum is σ = 6641531364. Its totient is φ = 6641531362.

The previous prime is 6641531341. The next prime is 6641531431. The reversal of 6641531363 is 3631351466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6641531363 - 2⁸ = 6641531107 is a prime.

It is not a weakly prime, because it can be changed into another prime (6641531063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320765681 + 3320765682.

It is an arithmetic number, because the mean of its divisors is an integer number (3320765682).

Almost surely, 2^6641531363 is an apocalyptic number.

6641531363 is a deficient number, since it is larger than the sum of its proper divisors (1).

6641531363 is an equidigital number, since it uses as much as digits as its factorization.

6641531363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 6641531363 is about 81495.5910647932. The cubic root of 6641531363 is about 1879.7037562300.

The spelling of 6641531363 in words is "six billion, six hundred forty-one million, five hundred thirty-one thousand, three hundred sixty-three".