12705700216 has 64 divisors (see below), whose sum is σ = 27429580800. Its totient is φ = 5456793600.

The previous prime is 12705700201. The next prime is 12705700237. The reversal of 12705700216 is 61200750721.

It is a super-2 number, since 2×12705700216² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 630456 + ... + 650296.

It is an arithmetic number, because the mean of its divisors is an integer number (428587200).

Almost surely, 2^12705700216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12705700216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13714790400).

12705700216 is an abundant number, since it is smaller than the sum of its proper divisors (14723880584).

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

12705700216 is a wasteful number, since it uses less digits than its factorization.

12705700216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260 (or 20256 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 12705700216 in words is "twelve billion, seven hundred five million, seven hundred thousand, two hundred sixteen".