6506666056 has 32 divisors (see below), whose sum is σ = 13431211200. Its totient is φ = 2930437440.

The previous prime is 6506666021. The next prime is 6506666059.

6506666056 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6506665997 and 6506666015.

It is not an unprimeable number, because it can be changed into a prime (6506666059) 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, 329580 + ... + 348763.

It is an arithmetic number, because the mean of its divisors is an integer number (419725350).

Almost surely, 2^6506666056 is an apocalyptic number.

It is an amenable number.

6506666056 is an abundant number, since it is smaller than the sum of its proper divisors (6924545144).

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

6506666056 is a wasteful number, since it uses less digits than its factorization.

6506666056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678469 (or 678465 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The square root of 6506666056 is about 80663.9080134356. The cubic root of 6506666056 is about 1866.8933380918.

The spelling of 6506666056 in words is "six billion, five hundred six million, six hundred sixty-six thousand, fifty-six".