320144355044 has 6 divisors (see below), whose sum is σ = 560252621334. Its totient is φ = 160072177520.

The previous prime is 320144355007. The next prime is 320144355067. The reversal of 320144355044 is 440553441023.

It can be written as a sum of positive squares in only one way, i.e., 314173702144 + 5970652900 = 560512^2 + 77270^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320144354995 and 320144355013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40018044377 + ... + 40018044384.

It is an arithmetic number, because the mean of its divisors is an integer number (93375436889).

Almost surely, 2^320144355044 is an apocalyptic number.

It is an amenable number.

320144355044 is a deficient number, since it is larger than the sum of its proper divisors (240108266290).

320144355044 is a wasteful number, since it uses less digits than its factorization.

320144355044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80036088765 (or 80036088763 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 320144355044 its reverse (440553441023), we get a palindrome (760697796067).

The spelling of 320144355044 in words is "three hundred twenty billion, one hundred forty-four million, three hundred fifty-five thousand, forty-four".