393160666 has 32 divisors (see below), whose sum is σ = 656449920. Its totient is φ = 175650816.

The previous prime is 393160661. The next prime is 393160697. The reversal of 393160666 is 666061393.

It is not an unprimeable number, because it can be changed into a prime (393160661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106890 + ... + 110506.

It is an arithmetic number, because the mean of its divisors is an integer number (20514060).

Almost surely, 2^393160666 is an apocalyptic number.

393160666 is a deficient number, since it is larger than the sum of its proper divisors (263289254).

393160666 is a wasteful number, since it uses less digits than its factorization.

393160666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 393160666 is about 19828.2794513291. The cubic root of 393160666 is about 732.5827485950.

The spelling of 393160666 in words is "three hundred ninety-three million, one hundred sixty thousand, six hundred sixty-six".