65551128 has 32 divisors (see below), whose sum is σ = 167877360. Its totient is φ = 21317120.

The previous prime is 65551093. The next prime is 65551147. The reversal of 65551128 is 82115556.

65551128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 7 ways as a sum of consecutive naturals, for example, 32325 + ... + 34292.

Almost surely, 2^65551128 is an apocalyptic number.

It is an amenable number.

65551128 is an abundant number, since it is smaller than the sum of its proper divisors (102326232).

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

65551128 is a wasteful number, since it uses less digits than its factorization.

65551128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66667 (or 66663 counting only the distinct ones).

The product of its digits is 12000, while the sum is 33.

The square root of 65551128 is about 8096.3651103443. The cubic root of 65551128 is about 403.2057558545.

The spelling of 65551128 in words is "sixty-five million, five hundred fifty-one thousand, one hundred twenty-eight".