66230142 has 32 divisors (see below), whose sum is σ = 149489280. Its totient is φ = 19377120.

The previous prime is 66230141. The next prime is 66230161. The reversal of 66230142 is 24103266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66230141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15388 + ... + 19215.

It is an arithmetic number, because the mean of its divisors is an integer number (4671540).

Almost surely, 2^66230142 is an apocalyptic number.

66230142 is an abundant number, since it is smaller than the sum of its proper divisors (83259138).

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

66230142 is a wasteful number, since it uses less digits than its factorization.

66230142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34648.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66230142 is about 8138.1903393814. The cubic root of 66230142 is about 404.5931839367.

The spelling of 66230142 in words is "sixty-six million, two hundred thirty thousand, one hundred forty-two".