66424352 has 12 divisors (see below), whose sum is σ = 130773006. Its totient is φ = 33212160.

The previous prime is 66424343. The next prime is 66424357. The reversal of 66424352 is 25342466.

66424352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 65351056 + 1073296 = 8084^2 + 1036^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2075761 = 66424352 / (6 + 6 + 4 + 2 + 4 + 3 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (66424357) 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 as a sum of consecutive naturals, namely, 1037849 + ... + 1037912.

Almost surely, 2^66424352 is an apocalyptic number.

It is an amenable number.

66424352 is a deficient number, since it is larger than the sum of its proper divisors (64348654).

66424352 is a wasteful number, since it uses less digits than its factorization.

66424352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075771 (or 2075763 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 66424352 is about 8150.1136188399. The cubic root of 66424352 is about 404.9882677087.

The spelling of 66424352 in words is "sixty-six million, four hundred twenty-four thousand, three hundred fifty-two".