66140134 has 16 divisors (see below), whose sum is σ = 106051680. Its totient is φ = 30859840.

The previous prime is 66140119. The next prime is 66140141. The reversal of 66140134 is 43104166.

It is a junction number, because it is equal to n+sod(n) for n = 66140099 and 66140108.

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 7 ways as a sum of consecutive naturals, for example, 15649 + ... + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (6628230).

Almost surely, 2^66140134 is an apocalyptic number.

66140134 is a deficient number, since it is larger than the sum of its proper divisors (39911546).

66140134 is a wasteful number, since it uses less digits than its factorization.

66140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35135.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 66140134 is about 8132.6584829316. The cubic root of 66140134 is about 404.4098176143.

The spelling of 66140134 in words is "sixty-six million, one hundred forty thousand, one hundred thirty-four".