161848850686187 has 8 divisors (see below), whose sum is σ = 184970270505216. Its totient is φ = 138727469725992.

The previous prime is 161848850686129. The next prime is 161848850686199. The reversal of 161848850686187 is 781686058848161.

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

It is not a de Polignac number, because 161848850686187 - 2¹⁶ = 161848850620651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161848850682187) 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 7 ways as a sum of consecutive naturals, for example, 163583 + ... + 17992344.

It is an arithmetic number, because the mean of its divisors is an integer number (23121283813152).

Almost surely, 2^{161848850686187} is an apocalyptic number.

161848850686187 is a deficient number, since it is larger than the sum of its proper divisors (23121419819029).

161848850686187 is a wasteful number, since it uses less digits than its factorization.

161848850686187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19429417.

The product of its (nonzero) digits is 990904320, while the sum is 77.

The spelling of 161848850686187 in words is "one hundred sixty-one trillion, eight hundred forty-eight billion, eight hundred fifty million, six hundred eighty-six thousand, one hundred eighty-seven".