8381355033204 has 144 divisors (see below), whose sum is σ = 22475948040000. Its totient is φ = 2626078371840.

The previous prime is 8381355033199. The next prime is 8381355033221. The reversal of 8381355033204 is 4023305531838.

8381355033204 is a `hidden beast` number, since 8 + 3 + 8 + 135 + 503 + 3 + 2 + 0 + 4 = 666.

It is a super-4 number, since 4×8381355033204⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 8381355033204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54897534 + ... + 55049994.

It is an arithmetic number, because the mean of its divisors is an integer number (156082972500).

Almost surely, 2^{8381355033204} 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 8381355033204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11237974020000).

8381355033204 is an abundant number, since it is smaller than the sum of its proper divisors (14094593006796).

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

8381355033204 is a wasteful number, since it uses less digits than its factorization.

8381355033204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153118 (or 153113 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

Adding to 8381355033204 its sum of digits (45), we get a square (8381355033249 = 2895057²).

The spelling of 8381355033204 in words is "eight trillion, three hundred eighty-one billion, three hundred fifty-five million, thirty-three thousand, two hundred four".