663344454 has 32 divisors (see below), whose sum is σ = 1478666880. Its totient is φ = 197154432.

The previous prime is 663344447. The next prime is 663344483. The reversal of 663344454 is 454443366.

663344454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169204 + ... + 173079.

It is an arithmetic number, because the mean of its divisors is an integer number (46208340).

Almost surely, 2^663344454 is an apocalyptic number.

663344454 is an abundant number, since it is smaller than the sum of its proper divisors (815322426).

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

663344454 is a wasteful number, since it uses less digits than its factorization.

663344454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342324.

The product of its digits is 414720, while the sum is 39.

The square root of 663344454 is about 25755.4742530593. The cubic root of 663344454 is about 872.1269375500.

The spelling of 663344454 in words is "six hundred sixty-three million, three hundred forty-four thousand, four hundred fifty-four".