4066006906 has 16 divisors (see below), whose sum is σ = 6626295144. Its totient is φ = 1860009984.

The previous prime is 4066006891. The next prime is 4066006937. The reversal of 4066006906 is 6096006604.

It can be written as a sum of positive squares in 4 ways, for example, as 2963169225 + 1102837681 = 54435^2 + 33209^2 .

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, 689031 + ... + 694906.

Almost surely, 2^4066006906 is an apocalyptic number.

4066006906 is a deficient number, since it is larger than the sum of its proper divisors (2560288238).

4066006906 is a wasteful number, since it uses less digits than its factorization.

4066006906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384065.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 4066006906 is about 63765.2484194957. The cubic root of 4066006906 is about 1596.0850778972.

The spelling of 4066006906 in words is "four billion, sixty-six million, six thousand, nine hundred six".