66017274 has 8 divisors (see below), whose sum is σ = 132034560. Its totient is φ = 22005756.

The previous prime is 66017251. The next prime is 66017279. The reversal of 66017274 is 47271066.

It is a sphenic number, since it is the product of 3 distinct primes.

66017274 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66017279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5501434 + ... + 5501445.

It is an arithmetic number, because the mean of its divisors is an integer number (16504320).

Almost surely, 2^66017274 is an apocalyptic number.

66017274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66017274 is a wasteful number, since it uses less digits than its factorization.

66017274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002884.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 66017274 is about 8125.1014762894. The cubic root of 66017274 is about 404.1592557444.

The spelling of 66017274 in words is "sixty-six million, seventeen thousand, two hundred seventy-four".