5663333664 has 144 divisors (see below), whose sum is σ = 16698322368. Its totient is φ = 1819224576.

The previous prime is 5663333659. The next prime is 5663333717. The reversal of 5663333664 is 4663333665.

5663333664 is a `hidden beast` number, since 5 + 6 + 633 + 3 + 3 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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, 1137709 + ... + 1142675.

It is an arithmetic number, because the mean of its divisors is an integer number (115960572).

Almost surely, 2^5663333664 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 5663333664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8349161184).

5663333664 is an abundant number, since it is smaller than the sum of its proper divisors (11034988704).

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

5663333664 is a wasteful number, since it uses less digits than its factorization.

5663333664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127 (or 5116 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 45.

The square root of 5663333664 is about 75255.1238388457. The cubic root of 5663333664 is about 1782.4774726008.

Subtracting from 5663333664 its reverse (4663333665), we obtain a palindrome (999999999).

The spelling of 5663333664 in words is "five billion, six hundred sixty-three million, three hundred thirty-three thousand, six hundred sixty-four".