646330506316 has 24 divisors (see below), whose sum is σ = 1306486265616. Its totient is φ = 276505029120.

The previous prime is 646330506307. The next prime is 646330506337. The reversal of 646330506316 is 613605033646.

646330506316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 432038361 + ... + 432039856.

It is an arithmetic number, because the mean of its divisors is an integer number (54436927734).

Almost surely, 2^646330506316 is an apocalyptic number.

It is an amenable number.

646330506316 is an abundant number, since it is smaller than the sum of its proper divisors (660155759300).

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

646330506316 is a wasteful number, since it uses less digits than its factorization.

646330506316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864078249 (or 864078247 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 646330506316 in words is "six hundred forty-six billion, three hundred thirty million, five hundred six thousand, three hundred sixteen".