63666752 has 14 divisors (see below), whose sum is σ = 126338838. Its totient is φ = 31833344.

The previous prime is 63666749. The next prime is 63666761. The reversal of 63666752 is 25766636.

63666752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 63616576 + 50176 = 7976^2 + 224^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497333 + ... + 497460.

Almost surely, 2^63666752 is an apocalyptic number.

It is an amenable number.

63666752 is a deficient number, since it is larger than the sum of its proper divisors (62672086).

63666752 is an equidigital number, since it uses as much as digits as its factorization.

63666752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994805 (or 994795 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The square root of 63666752 is about 7979.1448163321. The cubic root of 63666752 is about 399.3045248198.

The spelling of 63666752 in words is "sixty-three million, six hundred sixty-six thousand, seven hundred fifty-two".