320605749764 has 24 divisors (see below), whose sum is σ = 563331051360. Its totient is φ = 159654602304.

The previous prime is 320605749727. The next prime is 320605749769. The reversal of 320605749764 is 467947506023.

It is not an unprimeable number, because it can be changed into a prime (320605749769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168672 + ... + 2311784.

It is an arithmetic number, because the mean of its divisors is an integer number (23472127140).

Almost surely, 2^320605749764 is an apocalyptic number.

It is an amenable number.

320605749764 is a deficient number, since it is larger than the sum of its proper divisors (242725301596).

320605749764 is a wasteful number, since it uses less digits than its factorization.

320605749764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145379 (or 145377 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 320605749764 in words is "three hundred twenty billion, six hundred five million, seven hundred forty-nine thousand, seven hundred sixty-four".