16818361 has 8 divisors (see below), whose sum is σ = 19250240. Its totient is φ = 14393808.

The previous prime is 16818353. The next prime is 16818377. The reversal of 16818361 is 16381861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16818361 - 2³ = 16818353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16818391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4615 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (2406280).

Almost surely, 2^16818361 is an apocalyptic number.

It is an amenable number.

16818361 is a deficient number, since it is larger than the sum of its proper divisors (2431879).

16818361 is an equidigital number, since it uses as much as digits as its factorization.

16818361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663.

The product of its digits is 6912, while the sum is 34.

The square root of 16818361 is about 4101.0195073908. The cubic root of 16818361 is about 256.2091034476.

The spelling of 16818361 in words is "sixteen million, eight hundred eighteen thousand, three hundred sixty-one".