442661331164 has 48 divisors (see below), whose sum is σ = 850133975040. Its totient is φ = 200415720960.

The previous prime is 442661331163. The next prime is 442661331199. The reversal of 442661331164 is 461133166244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442661331163) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22564592 + ... + 22584200.

It is an arithmetic number, because the mean of its divisors is an integer number (17711124480).

Almost surely, 2^442661331164 is an apocalyptic number.

It is an amenable number.

442661331164 is a deficient number, since it is larger than the sum of its proper divisors (407472643876).

442661331164 is a wasteful number, since it uses less digits than its factorization.

442661331164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27870 (or 27868 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The spelling of 442661331164 in words is "four hundred forty-two billion, six hundred sixty-one million, three hundred thirty-one thousand, one hundred sixty-four".