6680181 has 8 divisors (see below), whose sum is σ = 8919520. Its totient is φ = 4447152.

The previous prime is 6680147. The next prime is 6680183. The reversal of 6680181 is 1810866.

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

It is not a de Polignac number, because 6680181 - 2⁷ = 6680053 is a prime.

It is a super-2 number, since 2×6680181² = 89249636385522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680183) 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, 2166 + ... + 4248.

It is an arithmetic number, because the mean of its divisors is an integer number (1114940).

Almost surely, 2^6680181 is an apocalyptic number.

It is an amenable number.

6680181 is a deficient number, since it is larger than the sum of its proper divisors (2239339).

6680181 is a wasteful number, since it uses less digits than its factorization.

6680181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 6680181 is about 2584.6046119281. The cubic root of 6680181 is about 188.3342946845.

The spelling of 6680181 in words is "six million, six hundred eighty thousand, one hundred eighty-one".