66143050 has 24 divisors (see below), whose sum is σ = 126354636. Its totient is φ = 25741440.

The previous prime is 66143041. The next prime is 66143059. The reversal of 66143050 is 5034166.

66143050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66143041) and next prime (66143059).

It can be written as a sum of positive squares in 6 ways, for example, as 53333809 + 12809241 = 7303^2 + 3579^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (66143059) 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 11 ways as a sum of consecutive naturals, for example, 16027 + ... + 19726.

Almost surely, 2^66143050 is an apocalyptic number.

66143050 is a deficient number, since it is larger than the sum of its proper divisors (60211586).

66143050 is a wasteful number, since it uses less digits than its factorization.

66143050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35802 (or 35797 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66143050 is about 8132.8377581260. The cubic root of 66143050 is about 404.4157607617.

The spelling of 66143050 in words is "sixty-six million, one hundred forty-three thousand, fifty".