630516168 has 48 divisors (see below), whose sum is σ = 1723335900. Its totient is φ = 208241280.

The previous prime is 630516167. The next prime is 630516193. The reversal of 630516168 is 861615036.

It is a happy number.

630516168 is a `hidden beast` number, since 6 + 30 + 5 + 1 + 616 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 569395044 + 61121124 = 23862^2 + 7818^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (630516167) 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, 32323 + ... + 48018.

Almost surely, 2^630516168 is an apocalyptic number.

It is an amenable number.

630516168 is an abundant number, since it is smaller than the sum of its proper divisors (1092819732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630516168 is a wasteful number, since it uses less digits than its factorization.

630516168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80462 (or 80455 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 630516168 is about 25110.0810034536. The cubic root of 630516168 is about 857.4959466244.

The spelling of 630516168 in words is "six hundred thirty million, five hundred sixteen thousand, one hundred sixty-eight".