8645994156384 has 1152 divisors, whose sum is σ = 30361298688000. Its totient is φ = 2379789434880.

The previous prime is 8645994156337. The next prime is 8645994156403. The reversal of 8645994156384 is 4836514995468.

8645994156384 is a `hidden beast` number, since 8 + 6 + 4 + 5 + 9 + 94 + 156 + 384 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11361358564 + ... + 11361359324.

It is an arithmetic number, because the mean of its divisors is an integer number (26355294000).

Almost surely, 2^{8645994156384} 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 8645994156384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15180649344000).

8645994156384 is an abundant number, since it is smaller than the sum of its proper divisors (21715304531616).

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

8645994156384 is a wasteful number, since it uses less digits than its factorization.

8645994156384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1018 counting only the distinct ones).

The product of its digits is 895795200, while the sum is 72.

The spelling of 8645994156384 in words is "eight trillion, six hundred forty-five billion, nine hundred ninety-four million, one hundred fifty-six thousand, three hundred eighty-four".