555161655111 has 24 divisors (see below), whose sum is σ = 858043535232. Its totient is φ = 312767070000.

The previous prime is 555161655107. The next prime is 555161655119. The reversal of 555161655111 is 111556161555.

It is not a de Polignac number, because 555161655111 - 2² = 555161655107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555161655119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2516265 + ... + 2727986.

It is an arithmetic number, because the mean of its divisors is an integer number (35751813968).

Almost surely, 2^555161655111 is an apocalyptic number.

555161655111 is a deficient number, since it is larger than the sum of its proper divisors (302881880121).

555161655111 is an equidigital number, since it uses as much as digits as its factorization.

555161655111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5244403 (or 5244332 counting only the distinct ones).

The product of its digits is 112500, while the sum is 42.

The spelling of 555161655111 in words is "five hundred fifty-five billion, one hundred sixty-one million, six hundred fifty-five thousand, one hundred eleven".