66750024 has 128 divisors (see below), whose sum is σ = 195955200. Its totient is φ = 18723840.

The previous prime is 66750017. The next prime is 66750029. The reversal of 66750024 is 42005766.

66750024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66749973 and 66750000.

It is not an unprimeable number, because it can be changed into a prime (66750029) 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 31 ways as a sum of consecutive naturals, for example, 480147 + ... + 480285.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^66750024 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 66750024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97977600).

66750024 is an abundant number, since it is smaller than the sum of its proper divisors (129205176).

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

66750024 is a wasteful number, since it uses less digits than its factorization.

66750024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66750024 is about 8170.0687879601. The cubic root of 66750024 is about 405.6490613638.

The spelling of 66750024 in words is "sixty-six million, seven hundred fifty thousand, twenty-four".