663632546 has 4 divisors (see below), whose sum is σ = 995448822. Its totient is φ = 331816272.

The previous prime is 663632539. The next prime is 663632597. The reversal of 663632546 is 645236366.

663632546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 533101921 + 130530625 = 23089^2 + 11425^2 .

It is a super-2 number, since 2×663632546² = 880816312220884232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165908135 + ... + 165908138.

Almost surely, 2^663632546 is an apocalyptic number.

663632546 is a deficient number, since it is larger than the sum of its proper divisors (331816276).

663632546 is a wasteful number, since it uses less digits than its factorization.

663632546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331816275.

The product of its digits is 466560, while the sum is 41.

The square root of 663632546 is about 25761.0664763709. The cubic root of 663632546 is about 872.2531748453.

The spelling of 663632546 in words is "six hundred sixty-three million, six hundred thirty-two thousand, five hundred forty-six".