1630143216 has 120 divisors (see below), whose sum is σ = 5126817696. Its totient is φ = 479761920.

The previous prime is 1630143191. The next prime is 1630143223. The reversal of 1630143216 is 6123410361.

1630143216 is a `hidden beast` number, since 1 + 630 + 1 + 4 + 3 + 21 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1630143216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24126 + ... + 61986.

Almost surely, 2^1630143216 is an apocalyptic number.

1630143216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630143216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2563408848).

1630143216 is an abundant number, since it is smaller than the sum of its proper divisors (3496674480).

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

1630143216 is a wasteful number, since it uses less digits than its factorization.

1630143216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37911 (or 37902 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1630143216 is about 40375.0320866746. The cubic root of 1630143216 is about 1176.9063885566.

Adding to 1630143216 its reverse (6123410361), we get a palindrome (7753553577).

The spelling of 1630143216 in words is "one billion, six hundred thirty million, one hundred forty-three thousand, two hundred sixteen".