13205966700 has 72 divisors (see below), whose sum is σ = 38236316608. Its totient is φ = 3519097920.

The previous prime is 13205966689. The next prime is 13205966729. The reversal of 13205966700 is 766950231.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430059 + ... + 459741.

Almost surely, 2^13205966700 is an apocalyptic number.

13205966700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13205966700 is an abundant number, since it is smaller than the sum of its proper divisors (25030349908).

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

13205966700 is a wasteful number, since it uses less digits than its factorization.

13205966700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31183 (or 31176 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 13205966700 in words is "thirteen billion, two hundred five million, nine hundred sixty-six thousand, seven hundred".