493057666 has 16 divisors (see below), whose sum is σ = 765123840. Its totient is φ = 238051440.

The previous prime is 493057661. The next prime is 493057673. The reversal of 493057666 is 666750394.

It is not an unprimeable number, because it can be changed into a prime (493057661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20440 + ... + 37468.

It is an arithmetic number, because the mean of its divisors is an integer number (47820240).

Almost surely, 2^493057666 is an apocalyptic number.

493057666 is a deficient number, since it is larger than the sum of its proper divisors (272066174).

493057666 is a wasteful number, since it uses less digits than its factorization.

493057666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17529.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 493057666 is about 22204.9018462140. The cubic root of 493057666 is about 790.0099694304.

The spelling of 493057666 in words is "four hundred ninety-three million, fifty-seven thousand, six hundred sixty-six".