5565797784 has 192 divisors, whose sum is σ = 16353792000. Its totient is φ = 1705017600.

The previous prime is 5565797777. The next prime is 5565797801. The reversal of 5565797784 is 4877975655.

5565797784 is a `hidden beast` number, since 5 + 56 + 579 + 7 + 7 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9291517 + ... + 9292115.

It is an arithmetic number, because the mean of its divisors is an integer number (85176000).

Almost surely, 2^5565797784 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 5565797784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8176896000).

5565797784 is an abundant number, since it is smaller than the sum of its proper divisors (10787994216).

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

5565797784 is a wasteful number, since it uses less digits than its factorization.

5565797784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 839 counting only the distinct ones).

The product of its digits is 74088000, while the sum is 63.

The square root of 5565797784 is about 74604.2745692229. The cubic root of 5565797784 is about 1772.1853463130.

The spelling of 5565797784 in words is "five billion, five hundred sixty-five million, seven hundred ninety-seven thousand, seven hundred eighty-four".