13661306112 has 36 divisors (see below), whose sum is σ = 36358999040. Its totient is φ = 4553768448.

The previous prime is 13661306111. The next prime is 13661306123. The reversal of 13661306112 is 21160316631.

It is a self number, because there is not a number n which added to its sum of digits gives 13661306112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661306111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8893312 + ... + 8894847.

Almost surely, 2^13661306112 is an apocalyptic number.

13661306112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13661306112 is an abundant number, since it is smaller than the sum of its proper divisors (22697692928).

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

13661306112 is an equidigital number, since it uses as much as digits as its factorization.

13661306112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17788178 (or 17788164 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 13661306112 in words is "thirteen billion, six hundred sixty-one million, three hundred six thousand, one hundred twelve".