66302650 has 12 divisors (see below), whose sum is σ = 123323022. Its totient is φ = 26521040.

The previous prime is 66302611. The next prime is 66302651. The reversal of 66302650 is 5620366.

It can be written as a sum of positive squares in 3 ways, for example, as 50310649 + 15992001 = 7093^2 + 3999^2 .

It is not an unprimeable number, because it can be changed into a prime (66302651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 662977 + ... + 663076.

Almost surely, 2^66302650 is an apocalyptic number.

66302650 is a deficient number, since it is larger than the sum of its proper divisors (57020372).

66302650 is a wasteful number, since it uses less digits than its factorization.

66302650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326065 (or 1326060 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 66302650 is about 8142.6439195141. The cubic root of 66302650 is about 404.7407780811.

The spelling of 66302650 in words is "sixty-six million, three hundred two thousand, six hundred fifty".