6631616112 has 80 divisors (see below), whose sum is σ = 18758977920. Its totient is φ = 2002067200.

The previous prime is 6631616111. The next prime is 6631616119. The reversal of 6631616112 is 2116161366.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631616111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118687 + ... + 165377.

It is an arithmetic number, because the mean of its divisors is an integer number (234487224).

Almost surely, 2^6631616112 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 6631616112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9379488960).

6631616112 is an abundant number, since it is smaller than the sum of its proper divisors (12127361808).

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

6631616112 is a wasteful number, since it uses less digits than its factorization.

6631616112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46982 (or 46976 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 6631616112 is about 81434.7352915204. The cubic root of 6631616112 is about 1878.7678768326.

Adding to 6631616112 its reverse (2116161366), we get a palindrome (8747777478).

It can be divided in two parts, 66316 and 16112, that added together give a palindrome (82428).

The spelling of 6631616112 in words is "six billion, six hundred thirty-one million, six hundred sixteen thousand, one hundred twelve".