161411378 has 16 divisors (see below), whose sum is σ = 255847680. Its totient is φ = 76217856.

The previous prime is 161411377. The next prime is 161411399. The reversal of 161411378 is 873114161.

161411378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161411377) 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, 18575 + ... + 25842.

It is an arithmetic number, because the mean of its divisors is an integer number (15990480).

Almost surely, 2^161411378 is an apocalyptic number.

161411378 is a deficient number, since it is larger than the sum of its proper divisors (94436302).

161411378 is a wasteful number, since it uses less digits than its factorization.

161411378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44521.

The product of its digits is 4032, while the sum is 32.

The square root of 161411378 is about 12704.7777627159. Note that the first 4 decimals coincide. The cubic root of 161411378 is about 544.4751314124.

The spelling of 161411378 in words is "one hundred sixty-one million, four hundred eleven thousand, three hundred seventy-eight".