11666526308752 has 240 divisors, whose sum is σ = 28446838571520. Its totient is φ = 4603527806976.

The previous prime is 11666526308741. The next prime is 11666526308791. The reversal of 11666526308752 is 25780362566611.

It is a happy number.

It is a super-2 number, since 2×11666526308752² (a number of 27 digits) contains 22 as substring.

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, 2229411928 + ... + 2229417160.

It is an arithmetic number, because the mean of its divisors is an integer number (118528494048).

Almost surely, 2^{11666526308752} 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 11666526308752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14223419285760).

11666526308752 is an abundant number, since it is smaller than the sum of its proper divisors (16780312262768).

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

11666526308752 is a wasteful number, since it uses less digits than its factorization.

11666526308752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8878 (or 8865 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 11666526308752 in words is "eleven trillion, six hundred sixty-six billion, five hundred twenty-six million, three hundred eight thousand, seven hundred fifty-two".