161716105 has 16 divisors (see below), whose sum is σ = 203253120. Its totient is φ = 123285888.

The previous prime is 161716073. The next prime is 161716111. The reversal of 161716105 is 501617161.

161716105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161716105 - 2⁵ = 161716073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30061 + ... + 35029.

It is an arithmetic number, because the mean of its divisors is an integer number (12703320).

Almost surely, 2^161716105 is an apocalyptic number.

It is an amenable number.

161716105 is a deficient number, since it is larger than the sum of its proper divisors (41537015).

161716105 is a wasteful number, since it uses less digits than its factorization.

161716105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 161716105 is about 12716.7647222082. The cubic root of 161716105 is about 544.8175524862.

The spelling of 161716105 in words is "one hundred sixty-one million, seven hundred sixteen thousand, one hundred five".