663454454366 has 16 divisors (see below), whose sum is σ = 1132855037568. Its totient is φ = 288458458200.

The previous prime is 663454454339. The next prime is 663454454381.

663454454366 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655586900 + ... + 655587911.

It is an arithmetic number, because the mean of its divisors is an integer number (70803439848).

Almost surely, 2^663454454366 is an apocalyptic number.

663454454366 is a deficient number, since it is larger than the sum of its proper divisors (469400583202).

663454454366 is a wasteful number, since it uses less digits than its factorization.

663454454366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311174847.

The product of its digits is 74649600, while the sum is 56.

The spelling of 663454454366 in words is "six hundred sixty-three billion, four hundred fifty-four million, four hundred fifty-four thousand, three hundred sixty-six".