66300142 has 4 divisors (see below), whose sum is σ = 99450216. Its totient is φ = 33150070.

The previous prime is 66300131. The next prime is 66300149. The reversal of 66300142 is 24100366.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66300149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16575034 + ... + 16575037.

It is an arithmetic number, because the mean of its divisors is an integer number (24862554).

Almost surely, 2^66300142 is an apocalyptic number.

66300142 is a deficient number, since it is larger than the sum of its proper divisors (33150074).

66300142 is a wasteful number, since it uses less digits than its factorization.

66300142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33150073.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 66300142 is about 8142.4899140251. The cubic root of 66300142 is about 404.7356747021.

The spelling of 66300142 in words is "sixty-six million, three hundred thousand, one hundred forty-two".