446145666 has 16 divisors (see below), whose sum is σ = 899318784. Its totient is φ = 147543984.

The previous prime is 446145653. The next prime is 446145709. The reversal of 446145666 is 666541644.

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, 291985 + ... + 293508.

It is an arithmetic number, because the mean of its divisors is an integer number (56207424).

Almost surely, 2^446145666 is an apocalyptic number.

446145666 is an abundant number, since it is smaller than the sum of its proper divisors (453173118).

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

446145666 is a wasteful number, since it uses less digits than its factorization.

446145666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585625.

The product of its digits is 414720, while the sum is 42.

The square root of 446145666 is about 21122.1605428990. The cubic root of 446145666 is about 764.1152949087.

The spelling of 446145666 in words is "four hundred forty-six million, one hundred forty-five thousand, six hundred sixty-six".