663120446 has 4 divisors (see below), whose sum is σ = 994680672. Its totient is φ = 331560222.

The previous prime is 663120443. The next prime is 663120457. The reversal of 663120446 is 644021366.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663120443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165780110 + ... + 165780113.

It is an arithmetic number, because the mean of its divisors is an integer number (248670168).

Almost surely, 2^663120446 is an apocalyptic number.

663120446 is a deficient number, since it is larger than the sum of its proper divisors (331560226).

663120446 is a wasteful number, since it uses less digits than its factorization.

663120446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331560225.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 663120446 is about 25751.1251404672. The cubic root of 663120446 is about 872.0287555747.

The spelling of 663120446 in words is "six hundred sixty-three million, one hundred twenty thousand, four hundred forty-six".