66304716 has 24 divisors (see below), whose sum is σ = 156577344. Its totient is φ = 21834960.

The previous prime is 66304697. The next prime is 66304717. The reversal of 66304716 is 61740366.

It is not an unprimeable number, because it can be changed into a prime (66304717) 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, 32290 + ... + 34281.

It is an arithmetic number, because the mean of its divisors is an integer number (6524056).

Almost surely, 2^66304716 is an apocalyptic number.

It is an amenable number.

66304716 is an abundant number, since it is smaller than the sum of its proper divisors (90272628).

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

66304716 is a wasteful number, since it uses less digits than its factorization.

66304716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66661 (or 66659 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 66304716 is about 8142.7707814969. The cubic root of 66304716 is about 404.7449819642.

The spelling of 66304716 in words is "sixty-six million, three hundred four thousand, seven hundred sixteen".