2806660806 has 16 divisors (see below), whose sum is σ = 5622086448. Its totient is φ = 934092800.

The previous prime is 2806660793. The next prime is 2806660807. The reversal of 2806660806 is 6080666082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806660807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361035 + ... + 368726.

It is an arithmetic number, because the mean of its divisors is an integer number (351380403).

Almost surely, 2^2806660806 is an apocalyptic number.

2806660806 is an abundant number, since it is smaller than the sum of its proper divisors (2815425642).

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

2806660806 is a wasteful number, since it uses less digits than its factorization.

2806660806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730407.

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

The square root of 2806660806 is about 52977.9275359088. The cubic root of 2806660806 is about 1410.5764968184.

The spelling of 2806660806 in words is "two billion, eight hundred six million, six hundred sixty thousand, eight hundred six".