643142301512316 has 48 divisors (see below), whose sum is σ = 1602490272983040. Its totient is φ = 200311284116160.

The previous prime is 643142301512299. The next prime is 643142301512351. The reversal of 643142301512316 is 613215103241346.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29808216016 + ... + 29808237591.

It is an arithmetic number, because the mean of its divisors is an integer number (33385214020480).

Almost surely, 2^{643142301512316} is an apocalyptic number.

It is an amenable number.

643142301512316 is an abundant number, since it is smaller than the sum of its proper divisors (959347971470724).

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

643142301512316 is a wasteful number, since it uses less digits than its factorization.

643142301512316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59616453674 (or 59616453672 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 643142301512316 in words is "six hundred forty-three trillion, one hundred forty-two billion, three hundred one million, five hundred twelve thousand, three hundred sixteen".