66086228 has 24 divisors (see below), whose sum is σ = 125540352. Its totient is φ = 30258144.

The previous prime is 66086213. The next prime is 66086233. The reversal of 66086228 is 82268066.

66086228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66086191 and 66086200.

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, 1601 + ... + 11607.

It is an arithmetic number, because the mean of its divisors is an integer number (5230848).

Almost surely, 2^66086228 is an apocalyptic number.

It is an amenable number.

66086228 is a deficient number, since it is larger than the sum of its proper divisors (59454124).

66086228 is a wasteful number, since it uses less digits than its factorization.

66086228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151 (or 10149 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 66086228 is about 8129.3436389416. The cubic root of 66086228 is about 404.2999194352.

The spelling of 66086228 in words is "sixty-six million, eighty-six thousand, two hundred twenty-eight".