16585360812 has 36 divisors (see below), whose sum is σ = 43746895920. Its totient is φ = 5288085792.

The previous prime is 16585360807. The next prime is 16585360829. The reversal of 16585360812 is 21806358561.

16585360812 is a `hidden beast` number, since 1 + 6 + 585 + 3 + 60 + 8 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10014487 + ... + 10016142.

Almost surely, 2^16585360812 is an apocalyptic number.

16585360812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16585360812 is an abundant number, since it is smaller than the sum of its proper divisors (27161535108).

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

16585360812 is a wasteful number, since it uses less digits than its factorization.

16585360812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030662 (or 20030657 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 16585360812 in words is "sixteen billion, five hundred eighty-five million, three hundred sixty thousand, eight hundred twelve".