2006686806 has 32 divisors (see below), whose sum is σ = 4045137408. Its totient is φ = 663616800.

The previous prime is 2006686793. The next prime is 2006686837. The reversal of 2006686806 is 6086866002.

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 15 ways as a sum of consecutive naturals, for example, 684115 + ... + 687041.

It is an arithmetic number, because the mean of its divisors is an integer number (126410544).

Almost surely, 2^2006686806 is an apocalyptic number.

2006686806 is an abundant number, since it is smaller than the sum of its proper divisors (2038450602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2006686806 is a wasteful number, since it uses less digits than its factorization.

2006686806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 2006686806 is about 44796.0579292419. The cubic root of 2006686806 is about 1261.3236291977.

The spelling of 2006686806 in words is "two billion, six million, six hundred eighty-six thousand, eight hundred six".