5665436448 has 288 divisors, whose sum is σ = 18204588864. Its totient is φ = 1536288768.

The previous prime is 5665436437. The next prime is 5665436453. The reversal of 5665436448 is 8446345665.

Its product of digits (8294400) is a multiple of the sum of its prime factors (864).

It is a self number, because there is not a number n which added to its sum of digits gives 5665436448.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7483686 + ... + 7484442.

It is an arithmetic number, because the mean of its divisors is an integer number (63210378).

Almost surely, 2^5665436448 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 5665436448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9102294432).

5665436448 is an abundant number, since it is smaller than the sum of its proper divisors (12539152416).

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

5665436448 is a wasteful number, since it uses less digits than its factorization.

5665436448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 849 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 51.

The square root of 5665436448 is about 75269.0935776431. The cubic root of 5665436448 is about 1782.6980553607.

The spelling of 5665436448 in words is "five billion, six hundred sixty-five million, four hundred thirty-six thousand, four hundred forty-eight".