663263345 has 8 divisors (see below), whose sum is σ = 797501376. Its totient is φ = 529553776.

The previous prime is 663263339. The next prime is 663263357. The reversal of 663263345 is 543362366.

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 663263345 - 2⁴ = 663263329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663263299 and 663263308.

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 7 ways as a sum of consecutive naturals, for example, 129347 + ... + 134376.

It is an arithmetic number, because the mean of its divisors is an integer number (99687672).

Almost surely, 2^663263345 is an apocalyptic number.

It is an amenable number.

663263345 is a deficient number, since it is larger than the sum of its proper divisors (134238031).

663263345 is a wasteful number, since it uses less digits than its factorization.

663263345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264231.

The product of its digits is 233280, while the sum is 38.

The square root of 663263345 is about 25753.8996076322. The cubic root of 663263345 is about 872.0913902931.

The spelling of 663263345 in words is "six hundred sixty-three million, two hundred sixty-three thousand, three hundred forty-five".