6681576605 has 8 divisors (see below), whose sum is σ = 8746791264. Its totient is φ = 4859328400.

The previous prime is 6681576571. The next prime is 6681576607. The reversal of 6681576605 is 5066751866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6681576605 - 2²⁴ = 6664799389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681576607) 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, 60741551 + ... + 60741660.

It is an arithmetic number, because the mean of its divisors is an integer number (1093348908).

Almost surely, 2^6681576605 is an apocalyptic number.

It is an amenable number.

6681576605 is a deficient number, since it is larger than the sum of its proper divisors (2065214659).

6681576605 is a wasteful number, since it uses less digits than its factorization.

6681576605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121483227.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 6681576605 is about 81740.9114519773. The cubic root of 6681576605 is about 1883.4740919848.

The spelling of 6681576605 in words is "six billion, six hundred eighty-one million, five hundred seventy-six thousand, six hundred five".