5443646660 has 12 divisors (see below), whose sum is σ = 11431658028. Its totient is φ = 2177458656.

The previous prime is 5443646651. The next prime is 5443646701. The reversal of 5443646660 is 666463445.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1506837124 + 3936809536 = 38818^2 + 62744^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136091147 + ... + 136091186.

It is an arithmetic number, because the mean of its divisors is an integer number (952638169).

Almost surely, 2^5443646660 is an apocalyptic number.

It is an amenable number.

5443646660 is an abundant number, since it is smaller than the sum of its proper divisors (5988011368).

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

5443646660 is a wasteful number, since it uses less digits than its factorization.

5443646660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272182342 (or 272182340 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The square root of 5443646660 is about 73781.0725050809. The cubic root of 5443646660 is about 1759.1247649792.

The spelling of 5443646660 in words is "five billion, four hundred forty-three million, six hundred forty-six thousand, six hundred sixty".