16072161 has 16 divisors (see below), whose sum is σ = 24858624. Its totient is φ = 9046224.

The previous prime is 16072139. The next prime is 16072163. The reversal of 16072161 is 16127061.

It is not a de Polignac number, because 16072161 - 2⁵ = 16072129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16072163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (1553664).

Almost surely, 2^16072161 is an apocalyptic number.

It is an amenable number.

16072161 is a deficient number, since it is larger than the sum of its proper divisors (8786463).

16072161 is a wasteful number, since it uses less digits than its factorization.

16072161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11500.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 16072161 is about 4009.0099775381. The cubic root of 16072161 is about 252.3624634107.

The spelling of 16072161 in words is "sixteen million, seventy-two thousand, one hundred sixty-one".