161606060055161 has 16 divisors (see below), whose sum is σ = 164857294891008. Its totient is φ = 158362407840000.

The previous prime is 161606060055149. The next prime is 161606060055169. The reversal of 161606060055161 is 161550060606161.

It is a cyclic number.

It is not a de Polignac number, because 161606060055161 - 2²⁶ = 161605992946297 is a prime.

It is a super-2 number, since 2×161606060055161² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161606060055169) by changing a digit.

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, 170396510 + ... + 171342296.

It is an arithmetic number, because the mean of its divisors is an integer number (10303580930688).

Almost surely, 2^{161606060055161} is an apocalyptic number.

It is an amenable number.

161606060055161 is a deficient number, since it is larger than the sum of its proper divisors (3251234835847).

161606060055161 is a wasteful number, since it uses less digits than its factorization.

161606060055161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949792.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 161606060055161 in words is "one hundred sixty-one trillion, six hundred six billion, sixty million, fifty-five thousand, one hundred sixty-one".