663153663 has 8 divisors (see below), whose sum is σ = 936217008. Its totient is φ = 416096384.

The previous prime is 663153661. The next prime is 663153671. The reversal of 663153663 is 366351366.

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 663153663 - 2¹ = 663153661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663153661) 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, 6501456 + ... + 6501557.

It is an arithmetic number, because the mean of its divisors is an integer number (117027126).

Almost surely, 2^663153663 is an apocalyptic number.

663153663 is a deficient number, since it is larger than the sum of its proper divisors (273063345).

663153663 is a wasteful number, since it uses less digits than its factorization.

663153663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13003033.

The product of its digits is 174960, while the sum is 39.

The square root of 663153663 is about 25751.7700945003. The cubic root of 663153663 is about 872.0433158736.

The spelling of 663153663 in words is "six hundred sixty-three million, one hundred fifty-three thousand, six hundred sixty-three".