163430666 has 32 divisors (see below), whose sum is σ = 295772160. Its totient is φ = 66162096.

The previous prime is 163430629. The next prime is 163430671. The reversal of 163430666 is 666034361.

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 15 ways as a sum of consecutive naturals, for example, 122495 + ... + 123821.

It is an arithmetic number, because the mean of its divisors is an integer number (9242880).

Almost surely, 2^163430666 is an apocalyptic number.

163430666 is a deficient number, since it is larger than the sum of its proper divisors (132341494).

163430666 is a wasteful number, since it uses less digits than its factorization.

163430666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 163430666 is about 12784.0003911139. Note that the first 3 decimals coincide. The cubic root of 163430666 is about 546.7362254505.

The spelling of 163430666 in words is "one hundred sixty-three million, four hundred thirty thousand, six hundred sixty-six".