13646360128 has 56 divisors (see below), whose sum is σ = 28024311744. Its totient is φ = 6587942400.

The previous prime is 13646360093. The next prime is 13646360149. The reversal of 13646360128 is 82106364631.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288213 + ... + 332203.

Almost surely, 2^13646360128 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 13646360128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14012155872).

13646360128 is an abundant number, since it is smaller than the sum of its proper divisors (14377951616).

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

13646360128 is a wasteful number, since it uses less digits than its factorization.

13646360128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44171 (or 44161 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 13646360128 in words is "thirteen billion, six hundred forty-six million, three hundred sixty thousand, one hundred twenty-eight".