8553313344240 has 1600 divisors, whose sum is σ = 36457386577920. Its totient is φ = 1816082104320.

The previous prime is 8553313344209. The next prime is 8553313344269. The reversal of 8553313344240 is 424433133558.

It is a happy number.

8553313344240 is a `hidden beast` number, since 8 + 5 + 5 + 33 + 133 + 442 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 15356038042 + ... + 15356038598.

Almost surely, 2^{8553313344240} is an apocalyptic number.

8553313344240 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 8553313344240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18228693288960).

8553313344240 is an abundant number, since it is smaller than the sum of its proper divisors (27904073233680).

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

8553313344240 is a wasteful number, since it uses less digits than its factorization.

8553313344240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

Adding to 8553313344240 its reverse (424433133558), we get a palindrome (8977746477798).

The spelling of 8553313344240 in words is "eight trillion, five hundred fifty-three billion, three hundred thirteen million, three hundred forty-four thousand, two hundred forty".