5661206560 has 96 divisors (see below), whose sum is σ = 14100609600. Its totient is φ = 2141936640.

The previous prime is 5661206543. The next prime is 5661206563. The reversal of 5661206560 is 656021665.

It is not an unprimeable number, because it can be changed into a prime (5661206563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2859651 + ... + 2861629.

It is an arithmetic number, because the mean of its divisors is an integer number (146881350).

Almost surely, 2^5661206560 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 5661206560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7050304800).

5661206560 is an abundant number, since it is smaller than the sum of its proper divisors (8439403040).

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

5661206560 is a wasteful number, since it uses less digits than its factorization.

5661206560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 5661206560 is about 75240.9898924782. The cubic root of 5661206560 is about 1782.2542831054.

The spelling of 5661206560 in words is "five billion, six hundred sixty-one million, two hundred six thousand, five hundred sixty".