66630148 has 12 divisors (see below), whose sum is σ = 125572300. Its totient is φ = 30752352.

The previous prime is 66630121. The next prime is 66630181. The reversal of 66630148 is 84103666.

It can be written as a sum of positive squares in 2 ways, for example, as 17040384 + 49589764 = 4128^2 + 7042^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 640623 + ... + 640726.

Almost surely, 2^66630148 is an apocalyptic number.

It is an amenable number.

66630148 is a deficient number, since it is larger than the sum of its proper divisors (58942152).

66630148 is a wasteful number, since it uses less digits than its factorization.

66630148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281366 (or 1281364 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 66630148 is about 8162.7292004574. The cubic root of 66630148 is about 405.4060815462.

The spelling of 66630148 in words is "sixty-six million, six hundred thirty thousand, one hundred forty-eight".