66164606 has 16 divisors (see below), whose sum is σ = 105321600. Its totient is φ = 31106328.

The previous prime is 66164591. The next prime is 66164641. The reversal of 66164606 is 60646166.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9476 + ... + 14903.

It is an arithmetic number, because the mean of its divisors is an integer number (6582600).

Almost surely, 2^66164606 is an apocalyptic number.

66164606 is a deficient number, since it is larger than the sum of its proper divisors (39156994).

66164606 is a wasteful number, since it uses less digits than its factorization.

66164606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24463.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 66164606 is about 8134.1628948528. The cubic root of 66164606 is about 404.4596889814.

The spelling of 66164606 in words is "sixty-six million, one hundred sixty-four thousand, six hundred six".