320341534204505 has 48 divisors (see below), whose sum is σ = 432452169959040. Its totient is φ = 227508840007680.

The previous prime is 320341534204493. The next prime is 320341534204543. The reversal of 320341534204505 is 505402435143023.

It is not a de Polignac number, because 320341534204505 - 2⁸ = 320341534204249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120250556 + ... + 122885634.

It is an arithmetic number, because the mean of its divisors is an integer number (9009420207480).

Almost surely, 2^{320341534204505} is an apocalyptic number.

It is an amenable number.

320341534204505 is a deficient number, since it is larger than the sum of its proper divisors (112110635754535).

320341534204505 is a wasteful number, since it uses less digits than its factorization.

320341534204505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639822 (or 2639811 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

Adding to 320341534204505 its reverse (505402435143023), we get a palindrome (825743969347528).

The spelling of 320341534204505 in words is "three hundred twenty trillion, three hundred forty-one billion, five hundred thirty-four million, two hundred four thousand, five hundred five".