13550201442 has 18 divisors (see below), whose sum is σ = 29359839873. Its totient is φ = 4516569192.

The previous prime is 13550201419. The next prime is 13550201491. The reversal of 13550201442 is 24410205531.

13550201442 is a `hidden beast` number, since 13 + 5 + 5 + 0 + 201 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13537089801 + 13111641 = 116349^2 + 3621^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=82311.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 480148 + ... + 507584.

Almost surely, 2^13550201442 is an apocalyptic number.

13550201442 is an abundant number, since it is smaller than the sum of its proper divisors (15809638431).

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

13550201442 is an frugal number, since it uses more digits than its factorization.

13550201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54882 (or 27442 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 13550201442 its reverse (24410205531), we get a palindrome (37960406973).

The spelling of 13550201442 in words is "thirteen billion, five hundred fifty million, two hundred one thousand, four hundred forty-two".