686573016216 has 16 divisors (see below), whose sum is σ = 1716432540600. Its totient is φ = 228857672064.

The previous prime is 686573016137. The next prime is 686573016229. The reversal of 686573016216 is 612610375686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14303604481 + ... + 14303604528.

Almost surely, 2^686573016216 is an apocalyptic number.

It is an amenable number.

686573016216 is an abundant number, since it is smaller than the sum of its proper divisors (1029859524384).

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

686573016216 is a wasteful number, since it uses less digits than its factorization.

686573016216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28607209018 (or 28607209014 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 686573016216 in words is "six hundred eighty-six billion, five hundred seventy-three million, sixteen thousand, two hundred sixteen".