16078161 has 16 divisors (see below), whose sum is σ = 24618240. Its totient is φ = 9231120.

The previous prime is 16078147. The next prime is 16078169. The reversal of 16078161 is 16187061.

It is a happy number.

It is not a de Polignac number, because 16078161 - 2⁵ = 16078129 is a prime.

It is a super-2 number, since 2×16078161² = 517014522283842, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16078169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12195 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (1538640).

Almost surely, 2^16078161 is an apocalyptic number.

16078161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16078161 is a deficient number, since it is larger than the sum of its proper divisors (8540079).

16078161 is a wasteful number, since it uses less digits than its factorization.

16078161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25676.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 16078161 is about 4009.7582221376. The cubic root of 16078161 is about 252.3938631791.

Subtracting 16078161 from its reverse (16187061), we obtain a square (108900 = 330²).

The spelling of 16078161 in words is "sixteen million, seventy-eight thousand, one hundred sixty-one".