55205011707161 has 4 divisors (see below), whose sum is σ = 58452365337012. Its totient is φ = 51957658077312.

The previous prime is 55205011707151. The next prime is 55205011707187. The reversal of 55205011707161 is 16170711050255.

55205011707161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22114399734025 + 33090611973136 = 4702595^2 + 5752444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55205011707161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55205011707101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623676814900 + ... + 1623676814933.

It is an arithmetic number, because the mean of its divisors is an integer number (14613091334253).

Almost surely, 2^{55205011707161} is an apocalyptic number.

It is an amenable number.

55205011707161 is a deficient number, since it is larger than the sum of its proper divisors (3247353629851).

55205011707161 is a wasteful number, since it uses less digits than its factorization.

55205011707161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247353629850.

The product of its (nonzero) digits is 73500, while the sum is 41.

The spelling of 55205011707161 in words is "fifty-five trillion, two hundred five billion, eleven million, seven hundred seven thousand, one hundred sixty-one".