5565689856 has 78 divisors (see below), whose sum is σ = 16076803340. Its totient is φ = 1855217664.

The previous prime is 5565689809. The next prime is 5565689861. The reversal of 5565689856 is 6589865655.

5565689856 is a `hidden beast` number, since 5 + 565 + 68 + 9 + 8 + 5 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 5565689793 and 5565689802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38626 + ... + 112353.

Almost surely, 2^5565689856 is an apocalyptic number.

It is an amenable number.

5565689856 is an abundant number, since it is smaller than the sum of its proper divisors (10511113484).

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

5565689856 is a wasteful number, since it uses less digits than its factorization.

5565689856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151009 (or 150984 counting only the distinct ones).

The product of its digits is 77760000, while the sum is 63.

The square root of 5565689856 is about 74603.5512291473. The cubic root of 5565689856 is about 1772.1738912522.

The spelling of 5565689856 in words is "five billion, five hundred sixty-five million, six hundred eighty-nine thousand, eight hundred fifty-six".