5565644221664 has 24 divisors (see below), whose sum is σ = 10959093754560. Its totient is φ = 2782382315776.

The previous prime is 5565644221649. The next prime is 5565644221703. The reversal of 5565644221664 is 4661224465655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13537904 + ... + 13942959.

It is an arithmetic number, because the mean of its divisors is an integer number (456628906440).

Almost surely, 2^{5565644221664} is an apocalyptic number.

It is an amenable number.

5565644221664 is a deficient number, since it is larger than the sum of its proper divisors (5393449532896).

5565644221664 is a wasteful number, since it uses less digits than its factorization.

5565644221664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27487202 (or 27487194 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 56.

The spelling of 5565644221664 in words is "five trillion, five hundred sixty-five billion, six hundred forty-four million, two hundred twenty-one thousand, six hundred sixty-four".