6991304112 has 240 divisors, whose sum is σ = 22306572288. Its totient is φ = 2027773440.

The previous prime is 6991304107. The next prime is 6991304113. The reversal of 6991304112 is 2114031996.

It is a happy number.

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 (6991304113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3055833 + ... + 3058119.

Almost surely, 2^6991304112 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 6991304112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11153286144).

6991304112 is an abundant number, since it is smaller than the sum of its proper divisors (15315268176).

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

6991304112 is a wasteful number, since it uses less digits than its factorization.

6991304112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 6991304112 is about 83614.0186332412. The cubic root of 6991304112 is about 1912.1387290434.

The spelling of 6991304112 in words is "six billion, nine hundred ninety-one million, three hundred four thousand, one hundred twelve".