555127111000000 has 784 divisors, whose sum is σ = 1721021645640960. Its totient is φ = 172593792000000.

The previous prime is 555127110999991. The next prime is 555127111000031. The reversal of 555127111000000 is 111721555.

It is a super-2 number, since 2×555127111000000² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 31492991187 + ... + 31493008813.

Almost surely, 2^{555127111000000} is an apocalyptic number.

555127111000000 is a gapful number since it is divisible by the number (50) 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 555127111000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860510822820480).

555127111000000 is an abundant number, since it is smaller than the sum of its proper divisors (1165894534640960).

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

555127111000000 is an equidigital number, since it uses as much as digits as its factorization.

555127111000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18096 (or 18061 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 28.

Adding to 555127111000000 its reverse (111721555), we get a palindrome (555127222721555).

The spelling of 555127111000000 in words is "five hundred fifty-five trillion, one hundred twenty-seven billion, one hundred eleven million", and thus it is an aban number.