6468355663 has 32 divisors (see below), whose sum is σ = 8428815360. Its totient is φ = 4816143360.

The previous prime is 6468355661. The next prime is 6468355669. The reversal of 6468355663 is 3665538646.

It is not a de Polignac number, because 6468355663 - 2¹ = 6468355661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6468355663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6468355661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201670 + ... + 231532.

It is an arithmetic number, because the mean of its divisors is an integer number (263400480).

Almost surely, 2^6468355663 is an apocalyptic number.

6468355663 is a deficient number, since it is larger than the sum of its proper divisors (1960459697).

6468355663 is a wasteful number, since it uses less digits than its factorization.

6468355663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007.

The product of its digits is 9331200, while the sum is 52.

The square root of 6468355663 is about 80426.0881990415. The cubic root of 6468355663 is about 1863.2221160260. Note that the first 3 decimals are identical.

The spelling of 6468355663 in words is "six billion, four hundred sixty-eight million, three hundred fifty-five thousand, six hundred sixty-three".