74146666 has 16 divisors (see below), whose sum is σ = 121913568. Its totient is φ = 33541200.

The previous prime is 74146651. The next prime is 74146669. The reversal of 74146666 is 66664147.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74146669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3345 + ... + 12628.

It is an arithmetic number, because the mean of its divisors is an integer number (7619598).

Almost surely, 2^74146666 is an apocalyptic number.

74146666 is a deficient number, since it is larger than the sum of its proper divisors (47766902).

74146666 is a wasteful number, since it uses less digits than its factorization.

74146666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16197.

The product of its digits is 145152, while the sum is 40.

The square root of 74146666 is about 8610.8458353405. The cubic root of 74146666 is about 420.1108286509.

The spelling of 74146666 in words is "seventy-four million, one hundred forty-six thousand, six hundred sixty-six".