11552550551520 has 192 divisors, whose sum is σ = 39718620635904. Its totient is φ = 2799217541120.

The previous prime is 11552550551497. The next prime is 11552550551557. The reversal of 11552550551520 is 2515505525511.

It is a super-2 number, since 2×11552550551520² (a number of 27 digits) contains 22 as substring.

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, 10029664 + ... + 11122016.

It is an arithmetic number, because the mean of its divisors is an integer number (206867815812).

Almost surely, 2^{11552550551520} is an apocalyptic number.

11552550551520 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 11552550551520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19859310317952).

11552550551520 is an abundant number, since it is smaller than the sum of its proper divisors (28166070084384).

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

11552550551520 is a wasteful number, since it uses less digits than its factorization.

11552550551520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094385 (or 1094377 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 42.

The spelling of 11552550551520 in words is "eleven trillion, five hundred fifty-two billion, five hundred fifty million, five hundred fifty-one thousand, five hundred twenty".