8815545363840 has 256 divisors, whose sum is σ = 28838440350720. Its totient is φ = 2289321345024.

The previous prime is 8815545363829. The next prime is 8815545363887. The reversal of 8815545363840 is 483635455188.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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, 27664297 + ... + 27981143.

It is an arithmetic number, because the mean of its divisors is an integer number (112650157620).

Almost surely, 2^{8815545363840} is an apocalyptic number.

8815545363840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8815545363840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14419220175360).

8815545363840 is an abundant number, since it is smaller than the sum of its proper divisors (20022894986880).

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

8815545363840 is a wasteful number, since it uses less digits than its factorization.

8815545363840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317249 (or 317237 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 60.

The spelling of 8815545363840 in words is "eight trillion, eight hundred fifteen billion, five hundred forty-five million, three hundred sixty-three thousand, eight hundred forty".