66287248 has 20 divisors (see below), whose sum is σ = 128581180. Its totient is φ = 33105024.

The previous prime is 66287237. The next prime is 66287281. The reversal of 66287248 is 84278266.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 57335184 = 2992^2 + 7572^2 .

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, 16018 + ... + 19726.

It is an arithmetic number, because the mean of its divisors is an integer number (6429059).

Almost surely, 2^66287248 is an apocalyptic number.

It is an amenable number.

66287248 is a deficient number, since it is larger than the sum of its proper divisors (62293932).

66287248 is a wasteful number, since it uses less digits than its factorization.

66287248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4828 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 66287248 is about 8141.6981029758. The cubic root of 66287248 is about 404.7094354413.

The spelling of 66287248 in words is "sixty-six million, two hundred eighty-seven thousand, two hundred forty-eight".