5610561668 has 12 divisors (see below), whose sum is σ = 9828337932. Its totient is φ = 2802465120.

The previous prime is 5610561643. The next prime is 5610561673. The reversal of 5610561668 is 8661650165.

It can be written as a sum of positive squares in 2 ways, for example, as 5169897604 + 440664064 = 71902^2 + 20992^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 699443 + ... + 707418.

It is an arithmetic number, because the mean of its divisors is an integer number (819028161).

Almost surely, 2^5610561668 is an apocalyptic number.

It is an amenable number.

5610561668 is a deficient number, since it is larger than the sum of its proper divisors (4217776264).

5610561668 is a wasteful number, since it uses less digits than its factorization.

5610561668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407862 (or 1407860 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 5610561668 is about 74903.6826063979. The cubic root of 5610561668 is about 1776.9237008586.

The spelling of 5610561668 in words is "five billion, six hundred ten million, five hundred sixty-one thousand, six hundred sixty-eight".