66009248 has 12 divisors (see below), whose sum is σ = 129955770. Its totient is φ = 33004608.

The previous prime is 66009239. The next prime is 66009277. The reversal of 66009248 is 84290066.

It can be written as a sum of positive squares in only one way, i.e., 64192144 + 1817104 = 8012^2 + 1348^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031363 + ... + 1031426.

Almost surely, 2^66009248 is an apocalyptic number.

It is an amenable number.

66009248 is a deficient number, since it is larger than the sum of its proper divisors (63946522).

66009248 is a wasteful number, since it uses less digits than its factorization.

66009248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062799 (or 2062791 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 66009248 is about 8124.6075597533. The cubic root of 66009248 is about 404.1428766290.

The spelling of 66009248 in words is "sixty-six million, nine thousand, two hundred forty-eight".