16818411 has 4 divisors (see below), whose sum is σ = 22424552. Its totient is φ = 11212272.

The previous prime is 16818391. The next prime is 16818413. The reversal of 16818411 is 11481861.

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

It is not a de Polignac number, because 16818411 - 2⁵ = 16818379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16818413) 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, 2803066 + ... + 2803071.

It is an arithmetic number, because the mean of its divisors is an integer number (5606138).

Almost surely, 2^16818411 is an apocalyptic number.

16818411 is a deficient number, since it is larger than the sum of its proper divisors (5606141).

16818411 is an equidigital number, since it uses as much as digits as its factorization.

16818411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606140.

The product of its digits is 1536, while the sum is 30.

The square root of 16818411 is about 4101.0256034314. The cubic root of 16818411 is about 256.2093573456.

The spelling of 16818411 in words is "sixteen million, eight hundred eighteen thousand, four hundred eleven".