66143352 has 32 divisors (see below), whose sum is σ = 180391680. Its totient is φ = 20043360.

The previous prime is 66143347. The next prime is 66143359. The reversal of 66143352 is 25334166.

66143352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66143359) 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, 125008 + ... + 125535.

It is an arithmetic number, because the mean of its divisors is an integer number (5637240).

Almost surely, 2^66143352 is an apocalyptic number.

It is an amenable number.

66143352 is an abundant number, since it is smaller than the sum of its proper divisors (114248328).

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

66143352 is a wasteful number, since it uses less digits than its factorization.

66143352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250563 (or 250559 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 66143352 is about 8132.8563248099. The cubic root of 66143352 is about 404.4163762629.

The spelling of 66143352 in words is "sixty-six million, one hundred forty-three thousand, three hundred fifty-two".