66674012 has 24 divisors (see below), whose sum is σ = 121201920. Its totient is φ = 32069360.

The previous prime is 66674011. The next prime is 66674107. The reversal of 66674012 is 21047666.

It is a super-2 number, since 2×66674012² = 8890847752352288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66674012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66674011) 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 7 ways as a sum of consecutive naturals, for example, 8087 + ... + 14097.

It is an arithmetic number, because the mean of its divisors is an integer number (5050080).

Almost surely, 2^66674012 is an apocalyptic number.

It is an amenable number.

66674012 is a deficient number, since it is larger than the sum of its proper divisors (54527908).

66674012 is a wasteful number, since it uses less digits than its factorization.

66674012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121 (or 6119 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 66674012 is about 8165.4156048544. The cubic root of 66674012 is about 405.4950244250.

The spelling of 66674012 in words is "sixty-six million, six hundred seventy-four thousand, twelve".