6516317040 has 80 divisors (see below), whose sum is σ = 20219316000. Its totient is φ = 1736073216.

The previous prime is 6516317029. The next prime is 6516317077. The reversal of 6516317040 is 407136156.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 6516316992 and 6516317010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258936 + ... + 282984.

It is an arithmetic number, because the mean of its divisors is an integer number (252741450).

Almost surely, 2^6516317040 is an apocalyptic number.

6516317040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6516317040 is an abundant number, since it is smaller than the sum of its proper divisors (13702998960).

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

6516317040 is a wasteful number, since it uses less digits than its factorization.

6516317040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25194 (or 25188 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 6516317040 is about 80723.7080416900. The cubic root of 6516317040 is about 1867.8159025746.

The spelling of 6516317040 in words is "six billion, five hundred sixteen million, three hundred seventeen thousand, forty".