2105533113440 has 24 divisors (see below), whose sum is σ = 4974321980880. Its totient is φ = 842213245312.

The previous prime is 2105533113433. The next prime is 2105533113449. The reversal of 2105533113440 is 443113355012.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 2105533113397 and 2105533113406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105533113449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6579790820 + ... + 6579791139.

It is an arithmetic number, because the mean of its divisors is an integer number (207263415870).

Almost surely, 2^{2105533113440} is an apocalyptic number.

2105533113440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105533113440 is an abundant number, since it is smaller than the sum of its proper divisors (2868788867440).

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

2105533113440 is a wasteful number, since it uses less digits than its factorization.

2105533113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13159581974 (or 13159581966 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 2105533113440 its reverse (443113355012), we get a palindrome (2548646468452).

The spelling of 2105533113440 in words is "two trillion, one hundred five billion, five hundred thirty-three million, one hundred thirteen thousand, four hundred forty".