320320162544 has 10 divisors (see below), whose sum is σ = 620620314960. Its totient is φ = 160160081264.

The previous prime is 320320162543. The next prime is 320320162559. The reversal of 320320162544 is 445261023023.

It is a self number, because there is not a number n which added to its sum of digits gives 320320162544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320320162543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010005064 + ... + 10010005095.

It is an arithmetic number, because the mean of its divisors is an integer number (62062031496).

Almost surely, 2^320320162544 is an apocalyptic number.

It is an amenable number.

320320162544 is a deficient number, since it is larger than the sum of its proper divisors (300300152416).

320320162544 is a wasteful number, since it uses less digits than its factorization.

320320162544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020010167 (or 20020010161 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 320320162544 its reverse (445261023023), we get a palindrome (765581185567).

The spelling of 320320162544 in words is "three hundred twenty billion, three hundred twenty million, one hundred sixty-two thousand, five hundred forty-four".