8196137659944 has 384 divisors, whose sum is σ = 25276179600000. Its totient is φ = 2458255288320.

The previous prime is 8196137659943. The next prime is 8196137659949. The reversal of 8196137659944 is 4499567316918.

It is a happy number.

8196137659944 is a `hidden beast` number, since 8 + 19 + 6 + 13 + 7 + 6 + 599 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (8196137659943) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3036729907 + ... + 3036732605.

It is an arithmetic number, because the mean of its divisors is an integer number (65823384375).

Almost surely, 2^{8196137659944} 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 8196137659944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12638089800000).

8196137659944 is an abundant number, since it is smaller than the sum of its proper divisors (17080041940056).

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

8196137659944 is a wasteful number, since it uses less digits than its factorization.

8196137659944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810 (or 4787 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 8196137659944 in words is "eight trillion, one hundred ninety-six billion, one hundred thirty-seven million, six hundred fifty-nine thousand, nine hundred forty-four".