161041868 has 12 divisors (see below), whose sum is σ = 303502080. Its totient is φ = 74326992.

The previous prime is 161041861. The next prime is 161041873. The reversal of 161041868 is 868140161.

It is a happy number.

161041868 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 (161041861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548428 + ... + 1548531.

It is an arithmetic number, because the mean of its divisors is an integer number (25291840).

Almost surely, 2^161041868 is an apocalyptic number.

It is an amenable number.

161041868 is a deficient number, since it is larger than the sum of its proper divisors (142460212).

161041868 is a wasteful number, since it uses less digits than its factorization.

161041868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096976 (or 3096974 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 161041868 is about 12690.2272635284. The cubic root of 161041868 is about 544.0593351874.

The spelling of 161041868 in words is "one hundred sixty-one million, forty-one thousand, eight hundred sixty-eight".