320443423144032 has 24 divisors (see below), whose sum is σ = 841163985753336. Its totient is φ = 106814474381312.

The previous prime is 320443423144001. The next prime is 320443423144037. The reversal of 320443423144032 is 230441324344023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320443423144037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668976162113 + ... + 1668976162304.

It is an arithmetic number, because the mean of its divisors is an integer number (35048499406389).

Almost surely, 2^{320443423144032} is an apocalyptic number.

320443423144032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320443423144032 is an abundant number, since it is smaller than the sum of its proper divisors (520720562609304).

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

320443423144032 is a wasteful number, since it uses less digits than its factorization.

320443423144032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337952324430 (or 3337952324422 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 320443423144032 its reverse (230441324344023), we get a palindrome (550884747488055).

The spelling of 320443423144032 in words is "three hundred twenty trillion, four hundred forty-three billion, four hundred twenty-three million, one hundred forty-four thousand, thirty-two".