146603666 has 16 divisors (see below), whose sum is σ = 242373600. Its totient is φ = 65950080.

The previous prime is 146603651. The next prime is 146603689. The reversal of 146603666 is 666306641.

146603666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 32216 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (15148350).

Almost surely, 2^146603666 is an apocalyptic number.

146603666 is a deficient number, since it is larger than the sum of its proper divisors (95769934).

146603666 is a wasteful number, since it uses less digits than its factorization.

146603666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68809.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 146603666 is about 12108.0000825900. Note that the first 4 decimals coincide. The cubic root of 146603666 is about 527.2884723490.

The spelling of 146603666 in words is "one hundred forty-six million, six hundred three thousand, six hundred sixty-six".