66304752 has 20 divisors (see below), whose sum is σ = 171287400. Its totient is φ = 22101568.

The previous prime is 66304751. The next prime is 66304769. The reversal of 66304752 is 25740366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66304751) 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 3 ways as a sum of consecutive naturals, for example, 690627 + ... + 690722.

It is an arithmetic number, because the mean of its divisors is an integer number (8564370).

Almost surely, 2^66304752 is an apocalyptic number.

It is an amenable number.

66304752 is an abundant number, since it is smaller than the sum of its proper divisors (104982648).

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

66304752 is a wasteful number, since it uses less digits than its factorization.

66304752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381360 (or 1381354 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 66304752 is about 8142.7729920464. The cubic root of 66304752 is about 404.7450552160.

The spelling of 66304752 in words is "sixty-six million, three hundred four thousand, seven hundred fifty-two".