161206932873 has 32 divisors (see below), whose sum is σ = 250548121600. Its totient is φ = 90297732096.

The previous prime is 161206932853. The next prime is 161206932881. The reversal of 161206932873 is 378239602161.

It is not a de Polignac number, because 161206932873 - 2¹⁷ = 161206801801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161206932823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118936 + ... + 580137.

It is an arithmetic number, because the mean of its divisors is an integer number (7829628800).

Almost surely, 2^161206932873 is an apocalyptic number.

It is an amenable number.

161206932873 is a deficient number, since it is larger than the sum of its proper divisors (89341188727).

161206932873 is a wasteful number, since it uses less digits than its factorization.

161206932873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699301.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 161206932873 in words is "one hundred sixty-one billion, two hundred six million, nine hundred thirty-two thousand, eight hundred seventy-three".