6691307112 has 192 divisors, whose sum is σ = 21864960000. Its totient is φ = 1845680256.

The previous prime is 6691307111. The next prime is 6691307149. The reversal of 6691307112 is 2117031966.

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 (6691307111) 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, 711513 + ... + 720855.

It is an arithmetic number, because the mean of its divisors is an integer number (113880000).

Almost surely, 2^6691307112 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 6691307112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10932480000).

6691307112 is an abundant number, since it is smaller than the sum of its proper divisors (15173652888).

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

6691307112 is a wasteful number, since it uses less digits than its factorization.

6691307112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405 (or 9384 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 6691307112 is about 81800.4102190203. The cubic root of 6691307112 is about 1884.3879615389.

The spelling of 6691307112 in words is "six billion, six hundred ninety-one million, three hundred seven thousand, one hundred twelve".