5665849344 has 144 divisors (see below), whose sum is σ = 16798123440. Its totient is φ = 1887436800.

The previous prime is 5665849339. The next prime is 5665849351. The reversal of 5665849344 is 4439485665.

5665849344 is a `hidden beast` number, since 5 + 66 + 58 + 493 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent 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, 3538144 + ... + 3539744.

It is an arithmetic number, because the mean of its divisors is an integer number (116653635).

Almost surely, 2^5665849344 is an apocalyptic number.

5665849344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5665849344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8399061720).

5665849344 is an abundant number, since it is smaller than the sum of its proper divisors (11132274096).

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

5665849344 is an frugal number, since it uses more digits than its factorization.

5665849344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1606 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The square root of 5665849344 is about 75271.8363267431. The cubic root of 5665849344 is about 1782.7413618810.

It can be divided in two parts, 566 and 5849344, that added together give a triangular number (5849910 = T₃₄₂₀).

The spelling of 5665849344 in words is "five billion, six hundred sixty-five million, eight hundred forty-nine thousand, three hundred forty-four".