5545989144 has 96 divisors (see below), whose sum is σ = 15361491600. Its totient is φ = 1807038720.

The previous prime is 5545989131. The next prime is 5545989151. The reversal of 5545989144 is 4419895455.

5545989144 is a `hidden beast` number, since 5 + 5 + 4 + 598 + 9 + 1 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765282 + ... + 772494.

Almost surely, 2^5545989144 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 5545989144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7680745800).

5545989144 is an abundant number, since it is smaller than the sum of its proper divisors (9815502456).

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

5545989144 is a wasteful number, since it uses less digits than its factorization.

5545989144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7465 (or 7458 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 5545989144 is about 74471.3981606361. The cubic root of 5545989144 is about 1770.0804483209.

The spelling of 5545989144 in words is "five billion, five hundred forty-five million, nine hundred eighty-nine thousand, one hundred forty-four".