66028968 has 48 divisors (see below), whose sum is σ = 179244000. Its totient is φ = 21958560.

The previous prime is 66028957. The next prime is 66028997. The reversal of 66028968 is 86982066.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42363 + ... + 43893.

It is an arithmetic number, because the mean of its divisors is an integer number (3734250).

Almost surely, 2^66028968 is an apocalyptic number.

It is an amenable number.

66028968 is an abundant number, since it is smaller than the sum of its proper divisors (113215032).

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

66028968 is a wasteful number, since it uses less digits than its factorization.

66028968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 66028968 is about 8125.8210662062. The cubic root of 66028968 is about 404.1831179803.

The spelling of 66028968 in words is "sixty-six million, twenty-eight thousand, nine hundred sixty-eight".