11547550555772 has 144 divisors (see below), whose sum is σ = 25400367514368. Its totient is φ = 4462594414080.

The previous prime is 11547550555759. The next prime is 11547550555829. The reversal of 11547550555772 is 27755505574511.

It is a happy number.

11547550555772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11547550555772² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

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, 5093757383 + ... + 5093759649.

It is an arithmetic number, because the mean of its divisors is an integer number (176391441072).

Almost surely, 2^{11547550555772} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11547550555772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12700183757184).

11547550555772 is an abundant number, since it is smaller than the sum of its proper divisors (13852816958596).

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

11547550555772 is a wasteful number, since it uses less digits than its factorization.

11547550555772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 42875000, while the sum is 59.

The spelling of 11547550555772 in words is "eleven trillion, five hundred forty-seven billion, five hundred fifty million, five hundred fifty-five thousand, seven hundred seventy-two".