6516903204 has 144 divisors (see below), whose sum is σ = 19725561856. Its totient is φ = 1774872000.

The previous prime is 6516903187. The next prime is 6516903209. The reversal of 6516903204 is 4023096156.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6516903209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517179 + ... + 529629.

Almost surely, 2^6516903204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6516903204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9862780928).

6516903204 is an abundant number, since it is smaller than the sum of its proper divisors (13208658652).

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

6516903204 is a wasteful number, since it uses less digits than its factorization.

6516903204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12566 (or 12561 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 6516903204 is about 80727.3386406365. The cubic root of 6516903204 is about 1867.8719062756.

The spelling of 6516903204 in words is "six billion, five hundred sixteen million, nine hundred three thousand, two hundred four".