11543484395520 has 624 divisors, whose sum is σ = 49885810071552. Its totient is φ = 2398643159040.

The previous prime is 11543484395441. The next prime is 11543484395551. The reversal of 11543484395520 is 2559348434511.

11543484395520 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 3 + 4 + 84 + 3 + 9 + 552 + 0 = 666.

It is a super-2 number, since 2×11543484395520² (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 47 ways as a sum of consecutive naturals, for example, 13785969 + ... + 14599311.

It is an arithmetic number, because the mean of its divisors is an integer number (79945208448).

Almost surely, 2^{11543484395520} is an apocalyptic number.

11543484395520 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 11543484395520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24942905035776).

11543484395520 is an abundant number, since it is smaller than the sum of its proper divisors (38342325676032).

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

11543484395520 is a wasteful number, since it uses less digits than its factorization.

11543484395520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813396 (or 813371 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 54.

The spelling of 11543484395520 in words is "eleven trillion, five hundred forty-three billion, four hundred eighty-four million, three hundred ninety-five thousand, five hundred twenty".