161341868 has 6 divisors (see below), whose sum is σ = 282348276. Its totient is φ = 80670932.

The previous prime is 161341861. The next prime is 161341871. The reversal of 161341868 is 868143161.

It is not an unprimeable number, because it can be changed into a prime (161341861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20167730 + ... + 20167737.

It is an arithmetic number, because the mean of its divisors is an integer number (47058046).

Almost surely, 2^161341868 is an apocalyptic number.

It is an amenable number.

161341868 is a deficient number, since it is larger than the sum of its proper divisors (121006408).

161341868 is a wasteful number, since it uses less digits than its factorization.

161341868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40335471 (or 40335469 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 161341868 is about 12702.0418830990. The cubic root of 161341868 is about 544.3969628205.

The spelling of 161341868 in words is "one hundred sixty-one million, three hundred forty-one thousand, eight hundred sixty-eight".