161716101 has 4 divisors (see below), whose sum is σ = 215621472. Its totient is φ = 107810732.

The previous prime is 161716073. The next prime is 161716111. The reversal of 161716101 is 101617161.

161716101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161716101 - 2⁵ = 161716069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161716111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26952681 + ... + 26952686.

It is an arithmetic number, because the mean of its divisors is an integer number (53905368).

Almost surely, 2^161716101 is an apocalyptic number.

It is an amenable number.

161716101 is a deficient number, since it is larger than the sum of its proper divisors (53905371).

161716101 is an equidigital number, since it uses as much as digits as its factorization.

161716101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53905370.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 161716101 is about 12716.7645649355. The cubic root of 161716101 is about 544.8175479943.

The spelling of 161716101 in words is "one hundred sixty-one million, seven hundred sixteen thousand, one hundred one".