6689211680109 has 32 divisors (see below), whose sum is σ = 10655082250240. Its totient is φ = 3652279113600.

The previous prime is 6689211680093. The next prime is 6689211680117. The reversal of 6689211680109 is 9010861129866.

It is not a de Polignac number, because 6689211680109 - 2⁴ = 6689211680093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6689211680309) 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 31 ways as a sum of consecutive naturals, for example, 64982032 + ... + 65084889.

It is an arithmetic number, because the mean of its divisors is an integer number (332971320320).

Almost surely, 2^{6689211680109} is an apocalyptic number.

It is an amenable number.

6689211680109 is a deficient number, since it is larger than the sum of its proper divisors (3965870570131).

6689211680109 is a wasteful number, since it uses less digits than its factorization.

6689211680109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130067041.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The spelling of 6689211680109 in words is "six trillion, six hundred eighty-nine billion, two hundred eleven million, six hundred eighty thousand, one hundred nine".