663654414 has 8 divisors (see below), whose sum is σ = 1327308840. Its totient is φ = 221218136.

The previous prime is 663654379. The next prime is 663654421. The reversal of 663654414 is 414456366.

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

663654414 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 55304529 + ... + 55304540.

It is an arithmetic number, because the mean of its divisors is an integer number (165913605).

Almost surely, 2^663654414 is an apocalyptic number.

663654414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663654414 is a wasteful number, since it uses less digits than its factorization.

663654414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110609074.

The product of its digits is 207360, while the sum is 39.

The square root of 663654414 is about 25761.4909118242. The cubic root of 663654414 is about 872.2627555603.

The spelling of 663654414 in words is "six hundred sixty-three million, six hundred fifty-four thousand, four hundred fourteen".