643360571327142 has 96 divisors (see below), whose sum is σ = 1488397701593088. Its totient is φ = 200356780998528.

The previous prime is 643360571327141. The next prime is 643360571327153. The reversal of 643360571327142 is 241723175063346.

643360571327142 is a `hidden beast` number, since 6 + 4 + 3 + 3 + 6 + 0 + 571 + 3 + 27 + 1 + 42 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643360571327141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2431745538 + ... + 2432010090.

It is an arithmetic number, because the mean of its divisors is an integer number (15504142724928).

Almost surely, 2^{643360571327142} is an apocalyptic number.

643360571327142 is an abundant number, since it is smaller than the sum of its proper divisors (845037130265946).

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

643360571327142 is a wasteful number, since it uses less digits than its factorization.

643360571327142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401234 (or 401231 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 643360571327142 in words is "six hundred forty-three trillion, three hundred sixty billion, five hundred seventy-one million, three hundred twenty-seven thousand, one hundred forty-two".