8194557563136 has 288 divisors, whose sum is σ = 27792476651520. Its totient is φ = 2333025110016.

The previous prime is 8194557563123. The next prime is 8194557563147. The reversal of 8194557563136 is 6313657554918.

8194557563136 is a `hidden beast` number, since 8 + 1 + 9 + 4 + 5 + 57 + 563 + 13 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13393441 + ... + 13991903.

It is an arithmetic number, because the mean of its divisors is an integer number (96501655040).

Almost surely, 2^{8194557563136} 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 8194557563136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13896238325760).

8194557563136 is an abundant number, since it is smaller than the sum of its proper divisors (19597919088384).

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

8194557563136 is a wasteful number, since it uses less digits than its factorization.

8194557563136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598778 (or 598758 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 8194557563136 in words is "eight trillion, one hundred ninety-four billion, five hundred fifty-seven million, five hundred sixty-three thousand, one hundred thirty-six".