66005170 has 64 divisors (see below), whose sum is σ = 154607616. Its totient is φ = 19673280.

The previous prime is 66005167. The next prime is 66005171. The reversal of 66005170 is 7150066.

It is not an unprimeable number, because it can be changed into a prime (66005171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15847 + ... + 19573.

It is an arithmetic number, because the mean of its divisors is an integer number (2415744).

Almost surely, 2^66005170 is an apocalyptic number.

66005170 is an abundant number, since it is smaller than the sum of its proper divisors (88602446).

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

66005170 is a wasteful number, since it uses less digits than its factorization.

66005170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 66005170 is about 8124.3565899091. The cubic root of 66005170 is about 404.1345539134.

The spelling of 66005170 in words is "sixty-six million, five thousand, one hundred seventy".