16078 has 4 divisors (see below), whose sum is σ = 24120. Its totient is φ = 8038.

The previous prime is 16073. The next prime is 16087. The reversal of 16078 is 87061.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16073) by changing a digit.

16078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4018 + ... + 4021.

It is an arithmetic number, because the mean of its divisors is an integer number (6030).

2¹⁶⁰⁷⁸ is an apocalyptic number.

16078 is a deficient number, since it is larger than the sum of its proper divisors (8042).

16078 is an equidigital number, since it uses as much as digits as its factorization.

16078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8041.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 16078 is about 126.7990536242. The cubic root of 16078 is about 25.2393020721.

The spelling of 16078 in words is "sixteen thousand, seventy-eight".