66286028 has 24 divisors (see below), whose sum is σ = 118784400. Its totient is φ = 32355648.

The previous prime is 66285983. The next prime is 66286037. The reversal of 66286028 is 82068266.

It is a junction number, because it is equal to n+sod(n) for n = 66285982 and 66286000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36158 + ... + 37946.

It is an arithmetic number, because the mean of its divisors is an integer number (4949350).

Almost surely, 2^66286028 is an apocalyptic number.

It is an amenable number.

66286028 is a deficient number, since it is larger than the sum of its proper divisors (52498372).

66286028 is a wasteful number, since it uses less digits than its factorization.

66286028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 2007 counting only the distinct ones).

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

The square root of 66286028 is about 8141.6231796860. The cubic root of 66286028 is about 404.7069525679.

The spelling of 66286028 in words is "sixty-six million, two hundred eighty-six thousand, twenty-eight".