320237583663 has 4 divisors (see below), whose sum is σ = 426983444888. Its totient is φ = 213491722440.

The previous prime is 320237583661. The next prime is 320237583667. The reversal of 320237583663 is 366385732023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366385732023 = 3 ⋅122128577341.

It is not a de Polignac number, because 320237583663 - 2¹ = 320237583661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320237583661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53372930608 + ... + 53372930613.

It is an arithmetic number, because the mean of its divisors is an integer number (106745861222).

Almost surely, 2^320237583663 is an apocalyptic number.

320237583663 is a deficient number, since it is larger than the sum of its proper divisors (106745861225).

320237583663 is a wasteful number, since it uses less digits than its factorization.

320237583663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106745861224.

The product of its (nonzero) digits is 3265920, while the sum is 48.

The spelling of 320237583663 in words is "three hundred twenty billion, two hundred thirty-seven million, five hundred eighty-three thousand, six hundred sixty-three".