320055542142 has 192 divisors, whose sum is σ = 808540268544. Its totient is φ = 83987904000.

The previous prime is 320055542141. The next prime is 320055542171. The reversal of 320055542142 is 241245550023.

It is a happy number.

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 95 ways as a sum of consecutive naturals, for example, 16834642 + ... + 16853642.

It is an arithmetic number, because the mean of its divisors is an integer number (4211147232).

Almost surely, 2^320055542142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320055542142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404270134272).

320055542142 is an abundant number, since it is smaller than the sum of its proper divisors (488484726402).

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

320055542142 is a wasteful number, since it uses less digits than its factorization.

320055542142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19143 (or 19136 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 320055542142 in words is "three hundred twenty billion, fifty-five million, five hundred forty-two thousand, one hundred forty-two".