320444661164 has 24 divisors (see below), whose sum is σ = 563118628128. Its totient is φ = 159554275200.

The previous prime is 320444661113. The next prime is 320444661191. The reversal of 320444661164 is 461166444023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915217 + ... + 2075799.

It is an arithmetic number, because the mean of its divisors is an integer number (23463276172).

Almost surely, 2^320444661164 is an apocalyptic number.

It is an amenable number.

320444661164 is a deficient number, since it is larger than the sum of its proper divisors (242673966964).

320444661164 is a wasteful number, since it uses less digits than its factorization.

320444661164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162665 (or 162663 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 320444661164 in words is "three hundred twenty billion, four hundred forty-four million, six hundred sixty-one thousand, one hundred sixty-four".