630163650 has 96 divisors (see below), whose sum is σ = 1699712640. Its totient is φ = 153861120.

The previous prime is 630163631. The next prime is 630163661. The reversal of 630163650 is 56361036.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

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 in 47 ways as a sum of consecutive naturals, for example, 91011 + ... + 97689.

It is an arithmetic number, because the mean of its divisors is an integer number (17705340).

Almost surely, 2^630163650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630163650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849856320).

630163650 is an abundant number, since it is smaller than the sum of its proper divisors (1069548990).

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

630163650 is a wasteful number, since it uses less digits than its factorization.

630163650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748 (or 6743 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 630163650 is about 25103.0605703767. The cubic root of 630163650 is about 857.3361097987.

It can be divided in two parts, 63016 and 3650, that added together give a palindrome (66666).

The spelling of 630163650 in words is "six hundred thirty million, one hundred sixty-three thousand, six hundred fifty".