6506568618 has 16 divisors (see below), whose sum is σ = 14196149856. Its totient is φ = 1971687440.

The previous prime is 6506568611. The next prime is 6506568631. The reversal of 6506568618 is 8168656056.

It is not an unprimeable number, because it can be changed into a prime (6506568611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49292121 + ... + 49292252.

It is an arithmetic number, because the mean of its divisors is an integer number (887259366).

Almost surely, 2^6506568618 is an apocalyptic number.

6506568618 is an abundant number, since it is smaller than the sum of its proper divisors (7689581238).

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

6506568618 is a wasteful number, since it uses less digits than its factorization.

6506568618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98584389.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The square root of 6506568618 is about 80663.3040359741. The cubic root of 6506568618 is about 1866.8840190714.

The spelling of 6506568618 in words is "six billion, five hundred six million, five hundred sixty-eight thousand, six hundred eighteen".