55205352166855 has 16 divisors (see below), whose sum is σ = 72276343169184. Its totient is φ = 40145170078080.

The previous prime is 55205352166759. The next prime is 55205352166927. The reversal of 55205352166855 is 55866125350255.

It is not a de Polignac number, because 55205352166855 - 2²⁹ = 55204815295943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55205352166855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51678384 + ... + 52735813.

It is an arithmetic number, because the mean of its divisors is an integer number (4517271448074).

Almost surely, 2^{55205352166855} is an apocalyptic number.

55205352166855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55205352166855 is a deficient number, since it is larger than the sum of its proper divisors (17070991002329).

55205352166855 is a wasteful number, since it uses less digits than its factorization.

55205352166855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104423826.

The product of its (nonzero) digits is 54000000, while the sum is 58.

The spelling of 55205352166855 in words is "fifty-five trillion, two hundred five billion, three hundred fifty-two million, one hundred sixty-six thousand, eight hundred fifty-five".