5644545120 has 72 divisors (see below), whose sum is σ = 19262015136. Its totient is φ = 1505211648.

The previous prime is 5644545119. The next prime is 5644545143. The reversal of 5644545120 is 215454465.

5644545120 is a `hidden beast` number, since 5 + 644 + 5 + 4 + 5 + 1 + 2 + 0 = 666.

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

It is a super-2 number, since 2×5644545120² = 63721779223431628800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1958472 + ... + 1961351.

It is an arithmetic number, because the mean of its divisors is an integer number (267527988).

Almost surely, 2^5644545120 is an apocalyptic number.

It is an amenable number.

5644545120 is an abundant number, since it is smaller than the sum of its proper divisors (13617470016).

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

5644545120 is a wasteful number, since it uses less digits than its factorization.

5644545120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919844 (or 3919833 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 5644545120 is about 75130.1878075651. The cubic root of 5644545120 is about 1780.5041201426.

Adding to 5644545120 its reverse (215454465), we get a palindrome (5859999585).

The spelling of 5644545120 in words is "five billion, six hundred forty-four million, five hundred forty-five thousand, one hundred twenty".