8136887616 has 672 divisors, whose sum is σ = 30120336000. Its totient is φ = 2127790080.

The previous prime is 8136887609. The next prime is 8136887639. The reversal of 8136887616 is 6167886318.

8136887616 is a `hidden beast` number, since 8 + 13 + 6 + 8 + 8 + 7 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2322432) is a multiple of the sum of its prime factors (224).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54609910 + ... + 54610058.

Almost surely, 2^8136887616 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 8136887616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15060168000).

8136887616 is an abundant number, since it is smaller than the sum of its proper divisors (21983448384).

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

8136887616 is a wasteful number, since it uses less digits than its factorization.

8136887616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 195 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 8136887616 is about 90204.6984142179. The cubic root of 8136887616 is about 2011.3428496003.

The spelling of 8136887616 in words is "eight billion, one hundred thirty-six million, eight hundred eighty-seven thousand, six hundred sixteen".