18316224341 has 4 divisors (see below), whose sum is σ = 18321921132. Its totient is φ = 18310527552.

The previous prime is 18316224331. The next prime is 18316224343. The reversal of 18316224341 is 14342261381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14342261381 = 7 ⋅2048894483.

It can be written as a sum of positive squares in 2 ways, for example, as 17516522500 + 799701841 = 132350^2 + 28279^2 .

It is a cyclic number.

It is not a de Polignac number, because 18316224341 - 2¹⁴ = 18316207957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18316224343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2843570 + ... + 2850003.

It is an arithmetic number, because the mean of its divisors is an integer number (4580480283).

Almost surely, 2^18316224341 is an apocalyptic number.

It is an amenable number.

18316224341 is a deficient number, since it is larger than the sum of its proper divisors (5696791).

18316224341 is an equidigital number, since it uses as much as digits as its factorization.

18316224341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5696790.

The product of its digits is 27648, while the sum is 35.

The spelling of 18316224341 in words is "eighteen billion, three hundred sixteen million, two hundred twenty-four thousand, three hundred forty-one".