2206446666 has 16 divisors (see below), whose sum is σ = 4419597600. Its totient is φ = 734364848.

The previous prime is 2206446637. The next prime is 2206446673. The reversal of 2206446666 is 6666446022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275061 + ... + 282968.

It is an arithmetic number, because the mean of its divisors is an integer number (276224850).

Almost surely, 2^2206446666 is an apocalyptic number.

2206446666 is an abundant number, since it is smaller than the sum of its proper divisors (2213150934).

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

2206446666 is a wasteful number, since it uses less digits than its factorization.

2206446666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558693.

The product of its (nonzero) digits is 497664, while the sum is 42.

The square root of 2206446666 is about 46972.8290184868. The cubic root of 2206446666 is about 1301.8605835604.

The spelling of 2206446666 in words is "two billion, two hundred six million, four hundred forty-six thousand, six hundred sixty-six".