66422142 has 12 divisors (see below), whose sum is σ = 143914680. Its totient is φ = 22140708.

The previous prime is 66422129. The next prime is 66422171. The reversal of 66422142 is 24122466.

66422142 is a `hidden beast` number, since 6 + 642 + 2 + 14 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1845042 + ... + 1845077.

It is an arithmetic number, because the mean of its divisors is an integer number (11992890).

Almost surely, 2^66422142 is an apocalyptic number.

66422142 is an abundant number, since it is smaller than the sum of its proper divisors (77492538).

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

66422142 is a wasteful number, since it uses less digits than its factorization.

66422142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690127 (or 3690124 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 66422142 is about 8149.9780367802. The cubic root of 66422142 is about 404.9837762134.

It can be divided in two parts, 66422 and 142, that added together give a square (66564 = 258²).

The spelling of 66422142 in words is "sixty-six million, four hundred twenty-two thousand, one hundred forty-two".