643414532302016 has 56 divisors (see below), whose sum is σ = 1295594350538400. Its totient is φ = 316971412531200.

The previous prime is 643414532301949. The next prime is 643414532302163. The reversal of 643414532302016 is 610203235414346.

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, 38667125 + ... + 52744436.

Almost surely, 2^{643414532302016} is an apocalyptic number.

It is an amenable number.

643414532302016 is an abundant number, since it is smaller than the sum of its proper divisors (652179818236384).

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

643414532302016 is a wasteful number, since it uses less digits than its factorization.

643414532302016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91413193 (or 91413183 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 643414532302016 in words is "six hundred forty-three trillion, four hundred fourteen billion, five hundred thirty-two million, three hundred two thousand, sixteen".