11556127000000 has 392 divisors, whose sum is σ = 31332086444160. Its totient is φ = 4193904000000.

The previous prime is 11556126999983. The next prime is 11556127000031. The reversal of 11556127000000 is 72165511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 9448999389 + ... + 9449000611.

Almost surely, 2^{11556127000000} is an apocalyptic number.

11556127000000 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 11556127000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15666043222080).

11556127000000 is an abundant number, since it is smaller than the sum of its proper divisors (19775959444160).

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

11556127000000 is an frugal number, since it uses more digits than its factorization.

11556127000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2100 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

Adding to 11556127000000 its reverse (72165511), we get a palindrome (11556199165511).

The spelling of 11556127000000 in words is "eleven trillion, five hundred fifty-six billion, one hundred twenty-seven million", and thus it is an aban number.