66074 has 4 divisors (see below), whose sum is σ = 99114. Its totient is φ = 33036.

The previous prime is 66071. The next prime is 66083. The reversal of 66074 is 47066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66049 + 25 = 257^2 + 5^2 .

66074 is a modest number, since divided by 74 gives 66 as remainder.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (66071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16517 + ... + 16520.

2⁶⁶⁰⁷⁴ is an apocalyptic number.

66074 is a deficient number, since it is larger than the sum of its proper divisors (33040).

66074 is a wasteful number, since it uses less digits than its factorization.

66074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33039.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 66074 is about 257.0486335307. The cubic root of 66074 is about 40.4274981893.

The spelling of 66074 in words is "sixty-six thousand, seventy-four".