65568128 has 16 divisors (see below), whose sum is σ = 130624260. Its totient is φ = 32784000.

The previous prime is 65568103. The next prime is 65568161. The reversal of 65568128 is 82186556.

65568128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255998 + ... + 256253.

Almost surely, 2^65568128 is an apocalyptic number.

It is an amenable number.

65568128 is a deficient number, since it is larger than the sum of its proper divisors (65056132).

65568128 is an equidigital number, since it uses as much as digits as its factorization.

65568128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512265 (or 512253 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 65568128 is about 8097.4148961258. The cubic root of 65568128 is about 403.2406085748.

The spelling of 65568128 in words is "sixty-five million, five hundred sixty-eight thousand, one hundred twenty-eight".