66282828 has 12 divisors (see below), whose sum is σ = 154659960. Its totient is φ = 22094272.

The previous prime is 66282781. The next prime is 66282833. The reversal of 66282828 is 82828266.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66282828.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2761773 + ... + 2761796.

It is an arithmetic number, because the mean of its divisors is an integer number (12888330).

Almost surely, 2^66282828 is an apocalyptic number.

It is an amenable number.

66282828 is an abundant number, since it is smaller than the sum of its proper divisors (88377132).

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

66282828 is a wasteful number, since it uses less digits than its factorization.

66282828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523576 (or 5523574 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 66282828 is about 8141.4266563054. The cubic root of 66282828 is about 404.7004399683.

The spelling of 66282828 in words is "sixty-six million, two hundred eighty-two thousand, eight hundred twenty-eight".