4066446440646 has 12 divisors (see below), whose sum is σ = 8810633954772. Its totient is φ = 1355482146876.

The previous prime is 4066446440633. The next prime is 4066446440659. The reversal of 4066446440646 is 6460446446604.

4066446440646 is a `hidden beast` number, since 40 + 6 + 64 + 46 + 440 + 64 + 6 = 666.

4066446440646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4066446440633) and next prime (4066446440659).

It is a junction number, because it is equal to n+sod(n) for n = 4066446440592 and 4066446440601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112956845556 + ... + 112956845591.

It is an arithmetic number, because the mean of its divisors is an integer number (734219496231).

Almost surely, 2^{4066446440646} is an apocalyptic number.

4066446440646 is an abundant number, since it is smaller than the sum of its proper divisors (4744187514126).

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

4066446440646 is a wasteful number, since it uses less digits than its factorization.

4066446440646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225913691155 (or 225913691152 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 54.

The spelling of 4066446440646 in words is "four trillion, sixty-six billion, four hundred forty-six million, four hundred forty thousand, six hundred forty-six".