64668102225 has 12 divisors (see below), whose sum is σ = 106917929136. Its totient is φ = 34489654480.

The previous prime is 64668102197. The next prime is 64668102227. The reversal of 64668102225 is 52220186646.

It is a happy number.

64668102225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64668102225 - 2⁷ = 64668102097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64668102227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431120607 + ... + 431120756.

It is an arithmetic number, because the mean of its divisors is an integer number (8909827428).

Almost surely, 2^64668102225 is an apocalyptic number.

It is an amenable number.

64668102225 is a deficient number, since it is larger than the sum of its proper divisors (42249826911).

64668102225 is a wasteful number, since it uses less digits than its factorization.

64668102225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862241376 (or 862241371 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 64668102225 in words is "sixty-four billion, six hundred sixty-eight million, one hundred two thousand, two hundred twenty-five".