4406345666 has 32 divisors (see below), whose sum is σ = 6934939200. Its totient is φ = 2096982720.

The previous prime is 4406345663. The next prime is 4406345683. The reversal of 4406345666 is 6665436044.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4406345663) 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 15 ways as a sum of consecutive naturals, for example, 3412481 + ... + 3413771.

It is an arithmetic number, because the mean of its divisors is an integer number (216716850).

Almost surely, 2^4406345666 is an apocalyptic number.

4406345666 is a deficient number, since it is larger than the sum of its proper divisors (2528593534).

4406345666 is a wasteful number, since it uses less digits than its factorization.

4406345666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The square root of 4406345666 is about 66380.3108308480. The cubic root of 4406345666 is about 1639.4299111614.

The spelling of 4406345666 in words is "four billion, four hundred six million, three hundred forty-five thousand, six hundred sixty-six".