161716296 has 128 divisors (see below), whose sum is σ = 503424000. Its totient is φ = 42239232.

The previous prime is 161716273. The next prime is 161716301. The reversal of 161716296 is 692617161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91695 + ... + 93441.

It is an arithmetic number, because the mean of its divisors is an integer number (3933000).

Almost surely, 2^161716296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161716296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251712000).

161716296 is an abundant number, since it is smaller than the sum of its proper divisors (341707704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161716296 is a wasteful number, since it uses less digits than its factorization.

161716296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1807 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 161716296 is about 12716.7722319777. The cubic root of 161716296 is about 544.8177669776.

The spelling of 161716296 in words is "one hundred sixty-one million, seven hundred sixteen thousand, two hundred ninety-six".