555256171140 has 192 divisors, whose sum is σ = 1707915186432. Its totient is φ = 133668864000.

The previous prime is 555256171123. The next prime is 555256171187. The reversal of 555256171140 is 41171652555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 555256171092 and 555256171101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76551754 + ... + 76559006.

It is an arithmetic number, because the mean of its divisors is an integer number (8895391596).

Almost surely, 2^555256171140 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 555256171140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853957593216).

555256171140 is an abundant number, since it is smaller than the sum of its proper divisors (1152659015292).

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

555256171140 is a wasteful number, since it uses less digits than its factorization.

555256171140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070 (or 8068 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The spelling of 555256171140 in words is "five hundred fifty-five billion, two hundred fifty-six million, one hundred seventy-one thousand, one hundred forty".