643065313424304 has 80 divisors (see below), whose sum is σ = 1663305089553792. Its totient is φ = 214090290484224.

The previous prime is 643065313424243. The next prime is 643065313424353. The reversal of 643065313424304 is 403424313560346.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220038127 + ... + 222941489.

Almost surely, 2^{643065313424304} is an apocalyptic number.

It is an amenable number.

643065313424304 is an abundant number, since it is smaller than the sum of its proper divisors (1020239776129488).

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

643065313424304 is a wasteful number, since it uses less digits than its factorization.

643065313424304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909074 (or 2909068 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 48.

The spelling of 643065313424304 in words is "six hundred forty-three trillion, sixty-five billion, three hundred thirteen million, four hundred twenty-four thousand, three hundred four".