18183443716 has 27 divisors (see below), whose sum is σ = 32079376693. Its totient is φ = 9018500480.

The previous prime is 18183443713. The next prime is 18183443809. The reversal of 18183443716 is 61734438181.

The square root of 18183443716 is 134846.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7387402500 + 10796041216 = 85950^2 + 103904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18183443713) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51510996 + ... + 51511348.

Almost surely, 2^18183443716 is an apocalyptic number.

18183443716 is the 134846-th square number.

It is an amenable number.

18183443716 is a deficient number, since it is larger than the sum of its proper divisors (13895932977).

18183443716 is an frugal number, since it uses more digits than its factorization.

18183443716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 546 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The spelling of 18183443716 in words is "eighteen billion, one hundred eighty-three million, four hundred forty-three thousand, seven hundred sixteen".