663675117 has 8 divisors (see below), whose sum is σ = 1011314496. Its totient is φ = 379242912.

The previous prime is 663675113. The next prime is 663675119. The reversal of 663675117 is 711576366.

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

It is not a de Polignac number, because 663675117 - 2² = 663675113 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663675113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15801768 + ... + 15801809.

It is an arithmetic number, because the mean of its divisors is an integer number (126414312).

Almost surely, 2^663675117 is an apocalyptic number.

It is an amenable number.

663675117 is a deficient number, since it is larger than the sum of its proper divisors (347639379).

663675117 is a wasteful number, since it uses less digits than its factorization.

663675117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31603587.

The product of its digits is 158760, while the sum is 42.

The square root of 663675117 is about 25761.8927293784. The cubic root of 663675117 is about 872.2718256766.

The spelling of 663675117 in words is "six hundred sixty-three million, six hundred seventy-five thousand, one hundred seventeen".