6563323506 has 8 divisors (see below), whose sum is σ = 13126647024. Its totient is φ = 2187774500.

The previous prime is 6563323457. The next prime is 6563323523. The reversal of 6563323506 is 6053233656.

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

6563323506 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546943620 + ... + 546943631.

It is an arithmetic number, because the mean of its divisors is an integer number (1640830878).

Almost surely, 2^6563323506 is an apocalyptic number.

6563323506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6563323506 is a wasteful number, since it uses less digits than its factorization.

6563323506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093887256.

The product of its (nonzero) digits is 291600, while the sum is 39.

The square root of 6563323506 is about 81014.3413600333. The cubic root of 6563323506 is about 1872.2964063081.

The spelling of 6563323506 in words is "six billion, five hundred sixty-three million, three hundred twenty-three thousand, five hundred six".