161068740 has 96 divisors (see below), whose sum is σ = 520660224. Its totient is φ = 36441600.

The previous prime is 161068679. The next prime is 161068741. The reversal of 161068740 is 47860161.

It is a happy number.

161068740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161068741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40522 + ... + 44318.

It is an arithmetic number, because the mean of its divisors is an integer number (5423544).

Almost surely, 2^161068740 is an apocalyptic number.

161068740 is a gapful number since it is divisible by the number (10) 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 161068740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260330112).

161068740 is an abundant number, since it is smaller than the sum of its proper divisors (359591484).

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

161068740 is a wasteful number, since it uses less digits than its factorization.

161068740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917 (or 3915 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 161068740 is about 12691.2859868494. The cubic root of 161068740 is about 544.0895947084.

The spelling of 161068740 in words is "one hundred sixty-one million, sixty-eight thousand, seven hundred forty".