161200033871 has 24 divisors (see below), whose sum is σ = 174995431920. Its totient is φ = 148071079296.

The previous prime is 161200033867. The next prime is 161200033903. The reversal of 161200033871 is 178330002161.

It is not a de Polignac number, because 161200033871 - 2² = 161200033867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161200033801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4796201 + ... + 4829693.

It is an arithmetic number, because the mean of its divisors is an integer number (7291476330).

Almost surely, 2^161200033871 is an apocalyptic number.

161200033871 is a deficient number, since it is larger than the sum of its proper divisors (13795398049).

161200033871 is a wasteful number, since it uses less digits than its factorization.

161200033871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33735 (or 33692 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 161200033871 in words is "one hundred sixty-one billion, two hundred million, thirty-three thousand, eight hundred seventy-one".