161006718 has 16 divisors (see below), whose sum is σ = 324176400. Its totient is φ = 53308416.

The previous prime is 161006717. The next prime is 161006719. The reversal of 161006718 is 817600161.

It is a happy number.

161006718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161006717) and next prime (161006719).

It is a super-2 number, since 2×161006718² = 51846326482263048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161006717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89155 + ... + 90942.

It is an arithmetic number, because the mean of its divisors is an integer number (20261025).

Almost surely, 2^161006718 is an apocalyptic number.

161006718 is an abundant number, since it is smaller than the sum of its proper divisors (163169682).

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

161006718 is a wasteful number, since it uses less digits than its factorization.

161006718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180251.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 161006718 is about 12688.8422639735. The cubic root of 161006718 is about 544.0197490487.

Adding to 161006718 its reverse (817600161), we get a palindrome (978606879).

The spelling of 161006718 in words is "one hundred sixty-one million, six thousand, seven hundred eighteen".