16955161 has 2 divisors, whose sum is σ = 16955162. Its totient is φ = 16955160.

The previous prime is 16955153. The next prime is 16955207. The reversal of 16955161 is 16155961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 145161 = 4100^2 + 381^2 .

It is an emirp because it is prime and its reverse (16155961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16955161 - 2³ = 16955153 is a prime.

It is not a weakly prime, because it can be changed into another prime (16955131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8477580 + 8477581.

It is an arithmetic number, because the mean of its divisors is an integer number (8477581).

Almost surely, 2^16955161 is an apocalyptic number.

It is an amenable number.

16955161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16955161 is an equidigital number, since it uses as much as digits as its factorization.

16955161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 16955161 is about 4117.6645079462. The cubic root of 16955161 is about 256.9018939486.

The spelling of 16955161 in words is "sixteen million, nine hundred fifty-five thousand, one hundred sixty-one".