6579802865665 has 16 divisors (see below), whose sum is σ = 7949003892480. Its totient is φ = 5228356996800.

The previous prime is 6579802865627. The next prime is 6579802865683. The reversal of 6579802865665 is 5665682089756.

It is not a de Polignac number, because 6579802865665 - 2²³ = 6579794477057 is a prime.

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, 5846932 + ... + 6880858.

It is an arithmetic number, because the mean of its divisors is an integer number (496812743280).

Almost surely, 2^{6579802865665} is an apocalyptic number.

It is an amenable number.

6579802865665 is a deficient number, since it is larger than the sum of its proper divisors (1369201026815).

6579802865665 is a wasteful number, since it uses less digits than its factorization.

6579802865665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042512.

The product of its (nonzero) digits is 1306368000, while the sum is 73.

The spelling of 6579802865665 in words is "six trillion, five hundred seventy-nine billion, eight hundred two million, eight hundred sixty-five thousand, six hundred sixty-five".