6559856064 has 112 divisors (see below), whose sum is σ = 19601220640. Its totient is φ = 2150737920.

The previous prime is 6559856027. The next prime is 6559856071. The reversal of 6559856064 is 4606589556.

6559856064 is a `hidden beast` number, since 6 + 559 + 85 + 6 + 0 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6559856064.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 74292 + ... + 136524.

Almost surely, 2^6559856064 is an apocalyptic number.

6559856064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6559856064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9800610320).

6559856064 is an abundant number, since it is smaller than the sum of its proper divisors (13041364576).

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

6559856064 is a wasteful number, since it uses less digits than its factorization.

6559856064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62315 (or 62299 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The square root of 6559856064 is about 80992.9383588471. The cubic root of 6559856064 is about 1871.9666331988.

The spelling of 6559856064 in words is "six billion, five hundred fifty-nine million, eight hundred fifty-six thousand, sixty-four".