320055542140 has 12 divisors (see below), whose sum is σ = 672116638536. Its totient is φ = 128022216848.

The previous prime is 320055542117. The next prime is 320055542141. The reversal of 320055542140 is 41245550023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320055542141) 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, 8001388534 + ... + 8001388573.

It is an arithmetic number, because the mean of its divisors is an integer number (56009719878).

Almost surely, 2^320055542140 is an apocalyptic number.

It is an amenable number.

320055542140 is an abundant number, since it is smaller than the sum of its proper divisors (352061096396).

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

320055542140 is a wasteful number, since it uses less digits than its factorization.

320055542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16002777116 (or 16002777114 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 320055542140 in words is "three hundred twenty billion, fifty-five million, five hundred forty-two thousand, one hundred forty".