161829118162 has 8 divisors (see below), whose sum is σ = 243170293500. Its totient is φ = 80772353664.

The previous prime is 161829118141. The next prime is 161829118163. The reversal of 161829118162 is 261811928161.

It can be written as a sum of positive squares in 2 ways, for example, as 120347241921 + 41481876241 = 346911^2 + 203671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (161829118163) 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 3 ways as a sum of consecutive naturals, for example, 71101287 + ... + 71103562.

Almost surely, 2^161829118162 is an apocalyptic number.

161829118162 is a deficient number, since it is larger than the sum of its proper divisors (81341175338).

161829118162 is a wasteful number, since it uses less digits than its factorization.

161829118162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142205420.

The product of its digits is 82944, while the sum is 46.

The spelling of 161829118162 in words is "one hundred sixty-one billion, eight hundred twenty-nine million, one hundred eighteen thousand, one hundred sixty-two".