6559319655 has 56 divisors (see below), whose sum is σ = 13487340192. Its totient is φ = 2998534464.

The previous prime is 6559319651. The next prime is 6559319713. The reversal of 6559319655 is 5569139556.

6559319655 is a `hidden beast` number, since 6 + 559 + 31 + 9 + 6 + 55 = 666.

It is not a de Polignac number, because 6559319655 - 2² = 6559319651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559319651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 103024 + ... + 154053.

Almost surely, 2^6559319655 is an apocalyptic number.

6559319655 is an abundant number, since it is smaller than the sum of its proper divisors (6928020537).

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

6559319655 is an equidigital number, since it uses as much as digits as its factorization.

6559319655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257107 (or 257092 counting only the distinct ones).

The product of its digits is 5467500, while the sum is 54.

The square root of 6559319655 is about 80989.6268357868. The cubic root of 6559319655 is about 1871.9156073272.

The spelling of 6559319655 in words is "six billion, five hundred fifty-nine million, three hundred nineteen thousand, six hundred fifty-five".