320320162542 has 16 divisors (see below), whose sum is σ = 643859625600. Its totient is φ = 106236837432.

The previous prime is 320320162511. The next prime is 320320162543. The reversal of 320320162542 is 245261023023.

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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134136228 + ... + 134138615.

It is an arithmetic number, because the mean of its divisors is an integer number (40241226600).

Almost surely, 2^320320162542 is an apocalyptic number.

320320162542 is an abundant number, since it is smaller than the sum of its proper divisors (323539463058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320320162542 is a wasteful number, since it uses less digits than its factorization.

320320162542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268275047.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 320320162542 its reverse (245261023023), we get a palindrome (565581185565).

The spelling of 320320162542 in words is "three hundred twenty billion, three hundred twenty million, one hundred sixty-two thousand, five hundred forty-two".