6506505944803 has 8 divisors (see below), whose sum is σ = 6517731250800. Its totient is φ = 6495290208000.

The previous prime is 6506505944801. The next prime is 6506505944819. The reversal of 6506505944803 is 3084495056056.

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 6506505944803 - 2¹ = 6506505944801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6506505944801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030573 + ... + 3751678.

It is an arithmetic number, because the mean of its divisors is an integer number (814716406350).

Almost surely, 2^{6506505944803} is an apocalyptic number.

6506505944803 is a deficient number, since it is larger than the sum of its proper divisors (11225305997).

6506505944803 is a wasteful number, since it uses less digits than its factorization.

6506505944803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4784597.

The product of its (nonzero) digits is 15552000, while the sum is 55.

The spelling of 6506505944803 in words is "six trillion, five hundred six billion, five hundred five million, nine hundred forty-four thousand, eight hundred three".