555543345555 has 128 divisors (see below), whose sum is σ = 1107331430400. Its totient is φ = 261886348800.

The previous prime is 555543345551. The next prime is 555543345557.

555543345555 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 43 + 3 + 45 + 555 = 666.

555543345555 is nontrivially palindromic in base 10.

555543345555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 555543345555 - 2² = 555543345551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (555543345551) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 103238965 + ... + 103244345.

It is an arithmetic number, because the mean of its divisors is an integer number (8651026800).

Almost surely, 2^555543345555 is an apocalyptic number.

555543345555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555543345555 is a deficient number, since it is larger than the sum of its proper divisors (551788084845).

555543345555 is a wasteful number, since it uses less digits than its factorization.

555543345555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322 (or 7316 counting only the distinct ones).

The product of its digits is 56250000, while the sum is 54.

The spelling of 555543345555 in words is "five hundred fifty-five billion, five hundred forty-three million, three hundred forty-five thousand, five hundred fifty-five".