6516655505 has 8 divisors (see below), whose sum is σ = 7936703232. Its totient is φ = 5135513328.

The previous prime is 6516655423. The next prime is 6516655529. The reversal of 6516655505 is 5055566156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6516655505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9726017 + ... + 9726686.

It is an arithmetic number, because the mean of its divisors is an integer number (992087904).

Almost surely, 2^6516655505 is an apocalyptic number.

It is an amenable number.

6516655505 is a deficient number, since it is larger than the sum of its proper divisors (1420047727).

6516655505 is a wasteful number, since it uses less digits than its factorization.

6516655505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19452775.

The product of its (nonzero) digits is 675000, while the sum is 44.

The square root of 6516655505 is about 80725.8044555767. The cubic root of 6516655505 is about 1867.8482408499.

The spelling of 6516655505 in words is "six billion, five hundred sixteen million, six hundred fifty-five thousand, five hundred five".