6516005516656 has 40 divisors (see below), whose sum is σ = 12893917861440. Its totient is φ = 3188548706304.

The previous prime is 6516005516651. The next prime is 6516005516693. The reversal of 6516005516656 is 6566155006156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516005516651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18937060 + ... + 19278076.

It is an arithmetic number, because the mean of its divisors is an integer number (322347946536).

Almost surely, 2^{6516005516656} is an apocalyptic number.

It is an amenable number.

6516005516656 is a deficient number, since it is larger than the sum of its proper divisors (6377912344784).

6516005516656 is a wasteful number, since it uses less digits than its factorization.

6516005516656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366481 (or 366475 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 6516005516656 in words is "six trillion, five hundred sixteen billion, five million, five hundred sixteen thousand, six hundred fifty-six".