161710016 has 42 divisors (see below), whose sum is σ = 347499432. Its totient is φ = 74630400.

The previous prime is 161710009. The next prime is 161710019. The reversal of 161710016 is 610017161.

It is a junction number, because it is equal to n+sod(n) for n = 161709973 and 161710000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161710019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3341 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (8273796).

Almost surely, 2^161710016 is an apocalyptic number.

161710016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161710016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173749716).

161710016 is an abundant number, since it is smaller than the sum of its proper divisors (185789416).

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

161710016 is a wasteful number, since it uses less digits than its factorization.

161710016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989 (or 14966 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 161710016 is about 12716.5253115778. The cubic root of 161710016 is about 544.8107145037.

Adding to 161710016 its reverse (610017161), we get a palindrome (771727177).

The spelling of 161710016 in words is "one hundred sixty-one million, seven hundred ten thousand, sixteen".