74066556 has 12 divisors (see below), whose sum is σ = 172821992. Its totient is φ = 24688848.

The previous prime is 74066549. The next prime is 74066593. The reversal of 74066556 is 65566047.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×74066556² = 10971709435402272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086095 + ... + 3086118.

Almost surely, 2^74066556 is an apocalyptic number.

It is an amenable number.

74066556 is an abundant number, since it is smaller than the sum of its proper divisors (98755436).

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

74066556 is a wasteful number, since it uses less digits than its factorization.

74066556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172220 (or 6172218 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 74066556 is about 8606.1928865207. The cubic root of 74066556 is about 419.9594745479.

The spelling of 74066556 in words is "seventy-four million, sixty-six thousand, five hundred fifty-six".