55711774065805 has 96 divisors (see below), whose sum is σ = 79117347456000. Its totient is φ = 37332844922880.

The previous prime is 55711774065743. The next prime is 55711774065809. The reversal of 55711774065805 is 50856047711755.

It is a happy number.

It is not a de Polignac number, because 55711774065805 - 2³³ = 55703184131213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55711774065809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16585819716 + ... + 16585823074.

It is an arithmetic number, because the mean of its divisors is an integer number (824139036000).

Almost surely, 2^{55711774065805} is an apocalyptic number.

55711774065805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55711774065805 is a deficient number, since it is larger than the sum of its proper divisors (23405573390195).

55711774065805 is a wasteful number, since it uses less digits than its factorization.

55711774065805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6106 counting only the distinct ones).

The product of its (nonzero) digits is 41160000, while the sum is 61.

The spelling of 55711774065805 in words is "fifty-five trillion, seven hundred eleven billion, seven hundred seventy-four million, sixty-five thousand, eight hundred five".