1630311116 has 96 divisors (see below), whose sum is σ = 3519065088. Its totient is φ = 645765120.

The previous prime is 1630311083. The next prime is 1630311119. The reversal of 1630311116 is 6111130361.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 1630311091 and 1630311100.

It is not an unprimeable number, because it can be changed into a prime (1630311119) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3128936 + ... + 3129456.

It is an arithmetic number, because the mean of its divisors is an integer number (36656928).

Almost surely, 2^1630311116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1630311116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759532544).

1630311116 is an abundant number, since it is smaller than the sum of its proper divisors (1888753972).

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

1630311116 is a wasteful number, since it uses less digits than its factorization.

1630311116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1630311116 is about 40377.1112884515. Note that the first 3 decimals coincide. The cubic root of 1630311116 is about 1176.9467931454.

Adding to 1630311116 its reverse (6111130361), we get a palindrome (7741441477).

The spelling of 1630311116 in words is "one billion, six hundred thirty million, three hundred eleven thousand, one hundred sixteen".