6505610243 has 8 divisors (see below), whose sum is σ = 7116802560. Its totient is φ = 5897713480.

The previous prime is 6505610227. The next prime is 6505610249. The reversal of 6505610243 is 3420165056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6505610243 - 2⁴ = 6505610227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6505610249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819755 + ... + 827652.

It is an arithmetic number, because the mean of its divisors is an integer number (889600320).

Almost surely, 2^6505610243 is an apocalyptic number.

6505610243 is a deficient number, since it is larger than the sum of its proper divisors (611192317).

6505610243 is a wasteful number, since it uses less digits than its factorization.

6505610243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647777.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 6505610243 is about 80657.3632286600. The cubic root of 6505610243 is about 1866.7923546357.

Adding to 6505610243 its reverse (3420165056), we get a palindrome (9925775299).

The spelling of 6505610243 in words is "six billion, five hundred five million, six hundred ten thousand, two hundred forty-three".