135443660616 has 72 divisors (see below), whose sum is σ = 403206102390. Its totient is φ = 41043530880.

The previous prime is 135443660593. The next prime is 135443660621. The reversal of 135443660616 is 616066344531.

135443660616 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 4 + 36 + 606 + 1 + 6 = 666.

135443660616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 84523932900 + 50919727716 = 290730^2 + 225654^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7764685 + ... + 7782108.

Almost surely, 2^135443660616 is an apocalyptic number.

It is an amenable number.

135443660616 is an abundant number, since it is smaller than the sum of its proper divisors (267762441774).

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

135443660616 is a wasteful number, since it uses less digits than its factorization.

135443660616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15546827 (or 15546809 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 135443660616 in words is "one hundred thirty-five billion, four hundred forty-three million, six hundred sixty thousand, six hundred sixteen".