6550261344 has 144 divisors (see below), whose sum is σ = 21073590720. Its totient is φ = 1984901760.

The previous prime is 6550261327. The next prime is 6550261357. The reversal of 6550261344 is 4431620556.

6550261344 is a `hidden beast` number, since 6 + 5 + 50 + 261 + 344 = 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 6550261299 and 6550261308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47247 + ... + 123825.

It is an arithmetic number, because the mean of its divisors is an integer number (146344380).

Almost surely, 2^6550261344 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 6550261344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10536795360).

6550261344 is an abundant number, since it is smaller than the sum of its proper divisors (14523329376).

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

6550261344 is a wasteful number, since it uses less digits than its factorization.

6550261344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76615 (or 76595 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6550261344 is about 80933.6848537122. The cubic root of 6550261344 is about 1871.0535156204.

The spelling of 6550261344 in words is "six billion, five hundred fifty million, two hundred sixty-one thousand, three hundred forty-four".