320434164420 has 48 divisors (see below), whose sum is σ = 898856000448. Its totient is φ = 85292887680.

The previous prime is 320434164403. The next prime is 320434164497. The reversal of 320434164420 is 24461434023.

It is an unprimeable number.

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, 4848871 + ... + 4914510.

It is an arithmetic number, because the mean of its divisors is an integer number (18726166676).

Almost surely, 2^320434164420 is an apocalyptic number.

320434164420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320434164420 is an abundant number, since it is smaller than the sum of its proper divisors (578421836028).

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

320434164420 is a wasteful number, since it uses less digits than its factorization.

320434164420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763940 (or 9763938 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 320434164420 its reverse (24461434023), we get a palindrome (344895598443).

The spelling of 320434164420 in words is "three hundred twenty billion, four hundred thirty-four million, one hundred sixty-four thousand, four hundred twenty".