20060681 has 8 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 19445488.

The previous prime is 20060653. The next prime is 20060717. The reversal of 20060681 is 18606002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20060681 is a prime.

It is a super-2 number, since 2×20060681² = 804861844367522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20060611) 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, 3035 + ... + 7023.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^20060681 is an apocalyptic number.

It is an amenable number.

20060681 is a deficient number, since it is larger than the sum of its proper divisors (623479).

20060681 is a wasteful number, since it uses less digits than its factorization.

20060681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20060681 is about 4478.9151588303. The cubic root of 20060681 is about 271.7160071137.

Adding to 20060681 its reverse (18606002), we get a palindrome (38666683).

The spelling of 20060681 in words is "twenty million, sixty thousand, six hundred eighty-one".