6689304604161 has 9 divisors (see below), whose sum is σ = 9662340080289. Its totient is φ = 4459531230036.

The previous prime is 6689304604069. The next prime is 6689304604187. The reversal of 6689304604161 is 1614064039866.

The square root of 6689304604161 is 2586369.

It is a perfect power (a square), and thus also a powerful number.

6689304604161 is a `hidden beast` number, since 6 + 6 + 89 + 3 + 0 + 460 + 41 + 61 = 666.

6689304604161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 6689304604161 - 2⁷ = 6689304604033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6689304604098 and 6689304604107.

It is not an unprimeable number, because it can be changed into a prime (6689304604361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7328046 + ... + 8190168.

Almost surely, 2^{6689304604161} is an apocalyptic number.

6689304604161 is the 2586369-th square number.

6689304604161 is the 1293185-th centered octagonal number.

It is an amenable number.

6689304604161 is a deficient number, since it is larger than the sum of its proper divisors (2973035476128).

6689304604161 is an frugal number, since it uses more digits than its factorization.

6689304604161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724252 (or 862126 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 6689304604161 in words is "six trillion, six hundred eighty-nine billion, three hundred four million, six hundred four thousand, one hundred sixty-one".