5644560720 has 80 divisors (see below), whose sum is σ = 17636014080. Its totient is φ = 1493356032.

The previous prime is 5644560671. The next prime is 5644560731. The reversal of 5644560720 is 270654465.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5644560720² = 63722131443533836800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62115 + ... + 123074.

It is an arithmetic number, because the mean of its divisors is an integer number (220450176).

Almost surely, 2^5644560720 is an apocalyptic number.

It is an amenable number.

5644560720 is an abundant number, since it is smaller than the sum of its proper divisors (11991453360).

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

5644560720 is a wasteful number, since it uses less digits than its factorization.

5644560720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185332 (or 185326 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 5644560720 is about 75130.2916272791. The cubic root of 5644560720 is about 1780.5057604188.

The spelling of 5644560720 in words is "five billion, six hundred forty-four million, five hundred sixty thousand, seven hundred twenty".