66732752 has 40 divisors (see below), whose sum is σ = 142865856. Its totient is φ = 30035456.

The previous prime is 66732751. The next prime is 66732761. The reversal of 66732752 is 25723766.

66732752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66732751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923 + ... + 11589.

Almost surely, 2^66732752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66732752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71432928).

66732752 is an abundant number, since it is smaller than the sum of its proper divisors (76133104).

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

66732752 is a wasteful number, since it uses less digits than its factorization.

66732752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715 (or 10709 counting only the distinct ones).

The product of its digits is 105840, while the sum is 38.

The square root of 66732752 is about 8169.0116905290. The cubic root of 66732752 is about 405.6140702403.

The spelling of 66732752 in words is "sixty-six million, seven hundred thirty-two thousand, seven hundred fifty-two".