16803181818223 has 2 divisors, whose sum is σ = 16803181818224. Its totient is φ = 16803181818222.

The previous prime is 16803181818169. The next prime is 16803181818229. The reversal of 16803181818223 is 32281818130861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16803181818223 - 2²¹ = 16803179721071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16803181818229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8401590909111 + 8401590909112.

It is an arithmetic number, because the mean of its divisors is an integer number (8401590909112).

Almost surely, 2^{16803181818223} is an apocalyptic number.

16803181818223 is a deficient number, since it is larger than the sum of its proper divisors (1).

16803181818223 is an equidigital number, since it uses as much as digits as its factorization.

16803181818223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 52.

The spelling of 16803181818223 in words is "sixteen trillion, eight hundred three billion, one hundred eighty-one million, eight hundred eighteen thousand, two hundred twenty-three".