16116811 has 4 divisors (see below), whose sum is σ = 16198000. Its totient is φ = 16035624.

The previous prime is 16116803. The next prime is 16116827. The reversal of 16116811 is 11861161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11861161 = 13 ⋅912397.

It is a cyclic number.

It is not a de Polignac number, because 16116811 - 2³ = 16116803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16116511) 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, 40296 + ... + 40693.

It is an arithmetic number, because the mean of its divisors is an integer number (4049500).

Almost surely, 2^16116811 is an apocalyptic number.

16116811 is a deficient number, since it is larger than the sum of its proper divisors (81189).

16116811 is an equidigital number, since it uses as much as digits as its factorization.

16116811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81188.

The product of its digits is 288, while the sum is 25.

The square root of 16116811 is about 4014.5748218211. The cubic root of 16116811 is about 252.5959430188.

Adding to 16116811 its reverse (11861161), we get a palindrome (27977972).

The spelling of 16116811 in words is "sixteen million, one hundred sixteen thousand, eight hundred eleven".