66250604 has 24 divisors (see below), whose sum is σ = 132840960. Its totient is φ = 28320336.

The previous prime is 66250601. The next prime is 66250619. The reversal of 66250604 is 40605266.

It is not an unprimeable number, because it can be changed into a prime (66250601) 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 7 ways as a sum of consecutive naturals, for example, 8909 + ... + 14555.

It is an arithmetic number, because the mean of its divisors is an integer number (5535040).

Almost surely, 2^66250604 is an apocalyptic number.

It is an amenable number.

66250604 is an abundant number, since it is smaller than the sum of its proper divisors (66590356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66250604 is a wasteful number, since it uses less digits than its factorization.

66250604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077 (or 6075 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66250604 is about 8139.4474013903. The cubic root of 66250604 is about 404.6348464036.

The spelling of 66250604 in words is "sixty-six million, two hundred fifty thousand, six hundred four".