666383473 has 8 divisors (see below), whose sum is σ = 762763392. Its totient is φ = 570299136.

The previous prime is 666383461. The next prime is 666383477. The reversal of 666383473 is 374383666.

666383473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666383473 - 2⁵ = 666383441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666383477) 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, 69040 + ... + 78097.

It is an arithmetic number, because the mean of its divisors is an integer number (95345424).

Almost surely, 2^666383473 is an apocalyptic number.

It is an amenable number.

666383473 is a deficient number, since it is larger than the sum of its proper divisors (96379919).

666383473 is a wasteful number, since it uses less digits than its factorization.

666383473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147791.

The product of its digits is 1306368, while the sum is 46.

The square root of 666383473 is about 25814.4043704285. The cubic root of 666383473 is about 873.4567509897.

The spelling of 666383473 in words is "six hundred sixty-six million, three hundred eighty-three thousand, four hundred seventy-three".