161016201 has 16 divisors (see below), whose sum is σ = 246238720. Its totient is φ = 103880880.

The previous prime is 161016199. The next prime is 161016221. The reversal of 161016201 is 102610161.

It is not a de Polignac number, because 161016201 - 2¹ = 161016199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161016221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95350 + ... + 97023.

It is an arithmetic number, because the mean of its divisors is an integer number (15389920).

Almost surely, 2^161016201 is an apocalyptic number.

It is an amenable number.

161016201 is a deficient number, since it is larger than the sum of its proper divisors (85222519).

161016201 is a wasteful number, since it uses less digits than its factorization.

161016201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192413 (or 192407 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 161016201 is about 12689.2159332246. The cubic root of 161016201 is about 544.0304294271.

Adding to 161016201 its reverse (102610161), we get a palindrome (263626362).

The spelling of 161016201 in words is "one hundred sixty-one million, sixteen thousand, two hundred one".