255556347012 has 144 divisors (see below), whose sum is σ = 679264185600. Its totient is φ = 80898048000.

The previous prime is 255556347001. The next prime is 255556347017. The reversal of 255556347012 is 210743655552.

It is a happy number.

255556347012 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 5 + 634 + 7 + 0 + 1 + 2 = 666.

255556347012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×255556347012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255556347017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53787637 + ... + 53792387.

It is an arithmetic number, because the mean of its divisors is an integer number (4717112400).

Almost surely, 2^255556347012 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 255556347012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339632092800).

255556347012 is an abundant number, since it is smaller than the sum of its proper divisors (423707838588).

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

255556347012 is a wasteful number, since it uses less digits than its factorization.

255556347012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626 (or 5621 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 255556347012 in words is "two hundred fifty-five billion, five hundred fifty-six million, three hundred forty-seven thousand, twelve".