5565659904 has 216 divisors, whose sum is σ = 19146924720. Its totient is φ = 1590091776.

The previous prime is 5565659861. The next prime is 5565659933. The reversal of 5565659904 is 4099565655.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 330472 + ... + 346904.

It is an arithmetic number, because the mean of its divisors is an integer number (88643170).

Almost surely, 2^5565659904 is an apocalyptic number.

5565659904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5565659904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9573462360).

5565659904 is an abundant number, since it is smaller than the sum of its proper divisors (13581264816).

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

5565659904 is a wasteful number, since it uses less digits than its factorization.

5565659904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472 (or 16445 counting only the distinct ones).

The product of its (nonzero) digits is 7290000, while the sum is 54.

The square root of 5565659904 is about 74603.3504877629. The cubic root of 5565659904 is about 1772.1707122364.

The spelling of 5565659904 in words is "five billion, five hundred sixty-five million, six hundred fifty-nine thousand, nine hundred four".