161044378 has 8 divisors (see below), whose sum is σ = 263527200. Its totient is φ = 73201980.

The previous prime is 161044333. The next prime is 161044379. The reversal of 161044378 is 873440161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (161044379) 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, 3660078 + ... + 3660121.

It is an arithmetic number, because the mean of its divisors is an integer number (32940900).

Almost surely, 2^161044378 is an apocalyptic number.

161044378 is a deficient number, since it is larger than the sum of its proper divisors (102482822).

161044378 is a wasteful number, since it uses less digits than its factorization.

161044378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320212.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 161044378 is about 12690.3261581411. The cubic root of 161044378 is about 544.0621617440.

The spelling of 161044378 in words is "one hundred sixty-one million, forty-four thousand, three hundred seventy-eight".