66480306 has 16 divisors (see below), whose sum is σ = 137250048. Its totient is φ = 21445200.

The previous prime is 66480269. The next prime is 66480307. The reversal of 66480306 is 60308466.

It is not an unprimeable number, because it can be changed into a prime (66480307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178525 + ... + 178896.

It is an arithmetic number, because the mean of its divisors is an integer number (8578128).

Almost surely, 2^66480306 is an apocalyptic number.

66480306 is an abundant number, since it is smaller than the sum of its proper divisors (70769742).

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

66480306 is a wasteful number, since it uses less digits than its factorization.

66480306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357457.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66480306 is about 8153.5456091200. The cubic root of 66480306 is about 405.1019526897.

The spelling of 66480306 in words is "sixty-six million, four hundred eighty thousand, three hundred six".