161016199 has 2 divisors, whose sum is σ = 161016200. Its totient is φ = 161016198.

The previous prime is 161016157. The next prime is 161016221. The reversal of 161016199 is 991610161.

161016199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161016199 - 2¹⁹ = 160491911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161016109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80508099 + 80508100.

It is an arithmetic number, because the mean of its divisors is an integer number (80508100).

Almost surely, 2^161016199 is an apocalyptic number.

161016199 is a deficient number, since it is larger than the sum of its proper divisors (1).

161016199 is an equidigital number, since it uses as much as digits as its factorization.

161016199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 161016199 is about 12689.2158544175. The cubic root of 161016199 is about 544.0304271746.

The spelling of 161016199 in words is "one hundred sixty-one million, sixteen thousand, one hundred ninety-nine".