11553330552320 has 160 divisors (see below), whose sum is σ = 27802639231488. Its totient is φ = 4604393299968.

The previous prime is 11553330552223. The next prime is 11553330552331. The reversal of 11553330552320 is 2325503335511.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806620679 + ... + 806635001.

Almost surely, 2^{11553330552320} is an apocalyptic number.

11553330552320 is a gapful number since it is divisible by the number (10) 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 11553330552320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13901319615744).

11553330552320 is an abundant number, since it is smaller than the sum of its proper divisors (16249308679168).

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

11553330552320 is an equidigital number, since it uses as much as digits as its factorization.

11553330552320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15480 (or 15464 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 38.

Adding to 11553330552320 its reverse (2325503335511), we get a palindrome (13878833887831).

The spelling of 11553330552320 in words is "eleven trillion, five hundred fifty-three billion, three hundred thirty million, five hundred fifty-two thousand, three hundred twenty".