320321440415 has 16 divisors (see below), whose sum is σ = 386596400736. Its totient is φ = 254784009600.

The previous prime is 320321440349. The next prime is 320321440423. The reversal of 320321440415 is 514044123023.

It is not a de Polignac number, because 320321440415 - 2¹⁰ = 320321439391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4236845 + ... + 4311785.

It is an arithmetic number, because the mean of its divisors is an integer number (24162275046).

Almost surely, 2^320321440415 is an apocalyptic number.

320321440415 is a deficient number, since it is larger than the sum of its proper divisors (66274960321).

320321440415 is a wasteful number, since it uses less digits than its factorization.

320321440415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79850.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 320321440415 its reverse (514044123023), we get a palindrome (834365563438).

The spelling of 320321440415 in words is "three hundred twenty billion, three hundred twenty-one million, four hundred forty thousand, four hundred fifteen".