6630663573 has 12 divisors (see below), whose sum is σ = 9578465728. Its totient is φ = 4420054440.

The previous prime is 6630663553. The next prime is 6630663587. The reversal of 6630663573 is 3753660366.

6630663573 is a `hidden beast` number, since 6 + 6 + 3 + 0 + 6 + 635 + 7 + 3 = 666.

It is not a de Polignac number, because 6630663573 - 2¹⁷ = 6630532501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630663553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107958 + ... + 157848.

Almost surely, 2^6630663573 is an apocalyptic number.

It is an amenable number.

6630663573 is a deficient number, since it is larger than the sum of its proper divisors (2947802155).

6630663573 is a wasteful number, since it uses less digits than its factorization.

6630663573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64664 (or 64661 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 45.

The square root of 6630663573 is about 81428.8866005179. The cubic root of 6630663573 is about 1878.6779196067.

The spelling of 6630663573 in words is "six billion, six hundred thirty million, six hundred sixty-three thousand, five hundred seventy-three".