5644166720 has 56 divisors (see below), whose sum is σ = 13493910528. Its totient is φ = 2248640000.

The previous prime is 5644166711. The next prime is 5644166741. The reversal of 5644166720 is 276614465.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45185 + ... + 115455.

It is an arithmetic number, because the mean of its divisors is an integer number (240962688).

Almost surely, 2^5644166720 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 5644166720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6746955264).

5644166720 is an abundant number, since it is smaller than the sum of its proper divisors (7849743808).

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

5644166720 is a wasteful number, since it uses less digits than its factorization.

5644166720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70539 (or 70529 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 5644166720 is about 75127.6694700428. The cubic root of 5644166720 is about 1780.4643320049.

The spelling of 5644166720 in words is "five billion, six hundred forty-four million, one hundred sixty-six thousand, seven hundred twenty".