320066281140 has 24 divisors (see below), whose sum is σ = 896185587360. Its totient is φ = 85351008288.

The previous prime is 320066281133. The next prime is 320066281189. The reversal of 320066281140 is 41182660023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667218950 + ... + 2667219069.

It is an arithmetic number, because the mean of its divisors is an integer number (37341066140).

Almost surely, 2^320066281140 is an apocalyptic number.

320066281140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320066281140 is an abundant number, since it is smaller than the sum of its proper divisors (576119306220).

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

320066281140 is a wasteful number, since it uses less digits than its factorization.

320066281140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334438031 (or 5334438029 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 320066281140 in words is "three hundred twenty billion, sixty-six million, two hundred eighty-one thousand, one hundred forty".