669116112 has 80 divisors (see below), whose sum is σ = 1995146112. Its totient is φ = 189273600.

The previous prime is 669116087. The next prime is 669116143. The reversal of 669116112 is 211611966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24078 + ... + 43794.

Almost surely, 2^669116112 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 669116112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997573056).

669116112 is an abundant number, since it is smaller than the sum of its proper divisors (1326030000).

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

669116112 is a wasteful number, since it uses less digits than its factorization.

669116112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19836 (or 19830 counting only the distinct ones).

The product of its digits is 3888, while the sum is 33.

The square root of 669116112 is about 25867.2787900080. The cubic root of 669116112 is about 874.6490508775.

The spelling of 669116112 in words is "six hundred sixty-nine million, one hundred sixteen thousand, one hundred twelve".