2006681845 has 8 divisors (see below), whose sum is σ = 2752020864. Its totient is φ = 1376010384.

The previous prime is 2006681821. The next prime is 2006681867. The reversal of 2006681845 is 5481866002.

2006681845 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2006681845 - 2¹⁹ = 2006157557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2006681798 and 2006681807.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28666849 + ... + 28666918.

It is an arithmetic number, because the mean of its divisors is an integer number (344002608).

Almost surely, 2^2006681845 is an apocalyptic number.

It is an amenable number.

2006681845 is a deficient number, since it is larger than the sum of its proper divisors (745339019).

2006681845 is an equidigital number, since it uses as much as digits as its factorization.

2006681845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57333779.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 2006681845 is about 44796.0025560317. The cubic root of 2006681845 is about 1261.3225897676.

The spelling of 2006681845 in words is "two billion, six million, six hundred eighty-one thousand, eight hundred forty-five".