556278061122 has 96 divisors (see below), whose sum is σ = 1404642425472. Its totient is φ = 155804193792.

The previous prime is 556278061063. The next prime is 556278061139. The reversal of 556278061122 is 221160872655.

556278061122 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 7 + 8 + 0 + 611 + 22 = 666.

It is a super-4 number, since 4×556278061122⁴ (a number of 48 digits) contains 4444 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, 7891698 + ... + 7961874.

It is an arithmetic number, because the mean of its divisors is an integer number (14631691932).

Almost surely, 2^556278061122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556278061122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702321212736).

556278061122 is an abundant number, since it is smaller than the sum of its proper divisors (848364364350).

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

556278061122 is a wasteful number, since it uses less digits than its factorization.

556278061122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71432 (or 71429 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 556278061122 in words is "five hundred fifty-six billion, two hundred seventy-eight million, sixty-one thousand, one hundred twenty-two".