55606116161 has 4 divisors (see below), whose sum is σ = 55606704324. Its totient is φ = 55605528000.

The previous prime is 55606116151. The next prime is 55606116179. The reversal of 55606116161 is 16161160655.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 55469670400 + 136445761 = 235520^2 + 11681^2 .

It is a cyclic number.

It is not a de Polignac number, because 55606116161 - 2¹⁰ = 55606115137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55606116121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116540 + ... + 353261.

It is an arithmetic number, because the mean of its divisors is an integer number (13901676081).

Almost surely, 2^55606116161 is an apocalyptic number.

It is an amenable number.

55606116161 is a deficient number, since it is larger than the sum of its proper divisors (588163).

55606116161 is a wasteful number, since it uses less digits than its factorization.

55606116161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588162.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 55606116161 in words is "fifty-five billion, six hundred six million, one hundred sixteen thousand, one hundred sixty-one".