5556118878 has 96 divisors (see below), whose sum is σ = 12837165120. Its totient is φ = 1733107200.

The previous prime is 5556118877. The next prime is 5556118889. The reversal of 5556118878 is 8788116555.

5556118878 is a `hidden beast` number, since 5 + 5 + 561 + 1 + 8 + 8 + 78 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5556118877) 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, 3720700 + ... + 3722192.

It is an arithmetic number, because the mean of its divisors is an integer number (133720470).

Almost surely, 2^5556118878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5556118878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6418582560).

5556118878 is an abundant number, since it is smaller than the sum of its proper divisors (7281046242).

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

5556118878 is a wasteful number, since it uses less digits than its factorization.

5556118878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1711 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 54.

The square root of 5556118878 is about 74539.3780360421. The cubic root of 5556118878 is about 1771.1574752235.

The spelling of 5556118878 in words is "five billion, five hundred fifty-six million, one hundred eighteen thousand, eight hundred seventy-eight".