11552205450520 has 32 divisors (see below), whose sum is σ = 29705671159200. Its totient is φ = 3960756154368.

The previous prime is 11552205450493. The next prime is 11552205450587. The reversal of 11552205450520 is 2505450225511.

It is a self number, because there is not a number n which added to its sum of digits gives 11552205450520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20628938025 + ... + 20628938584.

It is an arithmetic number, because the mean of its divisors is an integer number (928302223725).

Almost surely, 2^{11552205450520} is an apocalyptic number.

11552205450520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11552205450520 is an abundant number, since it is smaller than the sum of its proper divisors (18153465708680).

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

11552205450520 is a wasteful number, since it uses less digits than its factorization.

11552205450520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41257876627 (or 41257876623 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 11552205450520 in words is "eleven trillion, five hundred fifty-two billion, two hundred five million, four hundred fifty thousand, five hundred twenty".