5664323425221 has 48 divisors (see below), whose sum is σ = 8534216570880. Its totient is φ = 3616285992480.

The previous prime is 5664323425177. The next prime is 5664323425249. The reversal of 5664323425221 is 1225243234665.

5664323425221 is a `hidden beast` number, since 5 + 6 + 64 + 3 + 23 + 42 + 522 + 1 = 666.

5664323425221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5664323425221 - 2³³ = 5655733490629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5664323421221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11667886 + ... + 12143648.

It is an arithmetic number, because the mean of its divisors is an integer number (177796178560).

Almost surely, 2^{5664323425221} is an apocalyptic number.

It is an amenable number.

5664323425221 is a deficient number, since it is larger than the sum of its proper divisors (2869893145659).

5664323425221 is a wasteful number, since it uses less digits than its factorization.

5664323425221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476246 (or 476243 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

Adding to 5664323425221 its reverse (1225243234665), we get a palindrome (6889566659886).

The spelling of 5664323425221 in words is "five trillion, six hundred sixty-four billion, three hundred twenty-three million, four hundred twenty-five thousand, two hundred twenty-one".