320432118281240 has 32 divisors (see below), whose sum is σ = 823968304152480. Its totient is φ = 109862440553472.

The previous prime is 320432118281227. The next prime is 320432118281273. The reversal of 320432118281240 is 42182811234023.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 572200210937 + ... + 572200211496.

It is an arithmetic number, because the mean of its divisors is an integer number (25749009504765).

Almost surely, 2^{320432118281240} is an apocalyptic number.

It is an amenable number.

320432118281240 is an abundant number, since it is smaller than the sum of its proper divisors (503536185871240).

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

320432118281240 is a wasteful number, since it uses less digits than its factorization.

320432118281240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144400422451 (or 1144400422447 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 320432118281240 in words is "three hundred twenty trillion, four hundred thirty-two billion, one hundred eighteen million, two hundred eighty-one thousand, two hundred forty".