630660650 has 24 divisors (see below), whose sum is σ = 1173695340. Its totient is φ = 252120960.

The previous prime is 630660649. The next prime is 630660659. The reversal of 630660650 is 56066036.

630660650 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 6 ways, for example, as 131629729 + 499030921 = 11473^2 + 22339^2 .

It is a super-4 number, since 4×630660650⁴ (a number of 36 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (630660659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153422 + ... + 157478.

Almost surely, 2^630660650 is an apocalyptic number.

630660650 is a deficient number, since it is larger than the sum of its proper divisors (543034690).

630660650 is a wasteful number, since it uses less digits than its factorization.

630660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178 (or 7173 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 630660650 is about 25112.9578106602. The cubic root of 630660650 is about 857.5614396673.

The spelling of 630660650 in words is "six hundred thirty million, six hundred sixty thousand, six hundred fifty".