9916377856 has 432 divisors, whose sum is σ = 27402681600. Its totient is φ = 3491389440.

The previous prime is 9916377853. The next prime is 9916377869. The reversal of 9916377856 is 6587736199.

It is a junction number, because it is equal to n+sod(n) for n = 9916377794 and 9916377803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9916377851) 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, 119474391 + ... + 119474473.

Almost surely, 2^9916377856 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 9916377856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13701340800).

9916377856 is an abundant number, since it is smaller than the sum of its proper divisors (17486303744).

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

9916377856 is a wasteful number, since it uses less digits than its factorization.

9916377856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 151 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 61.

The square root of 9916377856 is about 99581.0115232819. The cubic root of 9916377856 is about 2148.4125910840.

The spelling of 9916377856 in words is "nine billion, nine hundred sixteen million, three hundred seventy-seven thousand, eight hundred fifty-six".