66017934 has 24 divisors (see below), whose sum is σ = 143922792. Its totient is φ = 21870000.

The previous prime is 66017933. The next prime is 66017947. The reversal of 66017934 is 43971066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66017933) 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 in 11 ways as a sum of consecutive naturals, for example, 8317 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (5996783).

Almost surely, 2^66017934 is an apocalyptic number.

66017934 is an abundant number, since it is smaller than the sum of its proper divisors (77904858).

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

66017934 is a wasteful number, since it uses less digits than its factorization.

66017934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22672 (or 22669 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 66017934 is about 8125.1420910652. The cubic root of 66017934 is about 404.1606025849.

It can be divided in two parts, 6601 and 7934, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 66017934 in words is "sixty-six million, seventeen thousand, nine hundred thirty-four".