320610601563 has 16 divisors (see below), whose sum is σ = 488558530560. Its totient is φ = 183202667136.

The previous prime is 320610601523. The next prime is 320610601583. The reversal of 320610601563 is 365106016023.

It is not a de Polignac number, because 320610601563 - 2¹⁸ = 320610339419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320610601513) by changing a digit.

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, 1423203 + ... + 1633011.

It is an arithmetic number, because the mean of its divisors is an integer number (30534908160).

Almost surely, 2^320610601563 is an apocalyptic number.

320610601563 is a deficient number, since it is larger than the sum of its proper divisors (167947928997).

320610601563 is a wasteful number, since it uses less digits than its factorization.

320610601563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282586.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 320610601563 its reverse (365106016023), we get a palindrome (685716617586).

The spelling of 320610601563 in words is "three hundred twenty billion, six hundred ten million, six hundred one thousand, five hundred sixty-three".