146406666 has 64 divisors (see below), whose sum is σ = 354078720. Its totient is φ = 39424320.

The previous prime is 146406643. The next prime is 146406677. The reversal of 146406666 is 666604641.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215920 + ... + 216596.

It is an arithmetic number, because the mean of its divisors is an integer number (5532480).

Almost surely, 2^146406666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146406666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177039360).

146406666 is an abundant number, since it is smaller than the sum of its proper divisors (207672054).

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

146406666 is a wasteful number, since it uses less digits than its factorization.

146406666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 146406666 is about 12099.8622306206. The cubic root of 146406666 is about 527.0521835970.

The spelling of 146406666 in words is "one hundred forty-six million, four hundred six thousand, six hundred sixty-six".