555555555555 has 256 divisors, whose sum is σ = 1237990182912. Its totient is φ = 205286400000.

The previous prime is 555555555551. The next prime is 555555555559.

555555555555 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (555555555551) and next prime (555555555559).

It is not a de Polignac number, because 555555555555 - 2² = 555555555551 is a prime.

It is a nude number because it is divisible by every one of its digits.

555555555555 is a modest number, since divided by 5555555 gives 55555 as remainder.

555555555555 is a nontrivial repdigit in base 10.

It is a plaindrome in base 10.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (555555555551) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 56106105 + ... + 56116005.

It is an arithmetic number, because the mean of its divisors is an integer number (4835899152).

Almost surely, 2^555555555555 is an apocalyptic number.

555555555555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555555555555 is an abundant number, since it is smaller than the sum of its proper divisors (682434627357).

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

555555555555 is a wasteful number, since it uses less digits than its factorization.

555555555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10078.

The product of its digits is 244140625, while the sum is 60.

The spelling of 555555555555 in words is "five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-five".