13555234224144 has 30 divisors (see below), whose sum is σ = 37935829113806. Its totient is φ = 4518411408000.

The previous prime is 13555234224137. The next prime is 13555234224149. The reversal of 13555234224144 is 44142243255531.

13555234224144 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 523 + 42 + 2 + 41 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11435624355600 + 2119609868544 = 3381660^2 + 1455888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13555234224144.

It is not an unprimeable number, because it can be changed into a prime (13555234224149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47066785357 + ... + 47066785644.

Almost surely, 2^{13555234224144} is an apocalyptic number.

It is an amenable number.

13555234224144 is an abundant number, since it is smaller than the sum of its proper divisors (24380594889662).

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

13555234224144 is a wasteful number, since it uses less digits than its factorization.

13555234224144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94133571015 (or 94133571006 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 13555234224144 its reverse (44142243255531), we get a palindrome (57697477479675).

The spelling of 13555234224144 in words is "thirteen trillion, five hundred fifty-five billion, two hundred thirty-four million, two hundred twenty-four thousand, one hundred forty-four".