166650628 has 24 divisors (see below), whose sum is σ = 299794880. Its totient is φ = 81012960.

The previous prime is 166650619. The next prime is 166650647. The reversal of 166650628 is 826056661.

166650628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37273 + ... + 41503.

Almost surely, 2^166650628 is an apocalyptic number.

It is an amenable number.

166650628 is a deficient number, since it is larger than the sum of its proper divisors (133144252).

166650628 is a wasteful number, since it uses less digits than its factorization.

166650628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4507 (or 4505 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 166650628 is about 12909.3232975242. The cubic root of 166650628 is about 550.3035547460.

The spelling of 166650628 in words is "one hundred sixty-six million, six hundred fifty thousand, six hundred twenty-eight".