18380616322 has 16 divisors (see below), whose sum is σ = 27723288312. Its totient is φ = 9139553280.

The previous prime is 18380616311. The next prime is 18380616323. The reversal of 18380616322 is 22361608381.

It can be written as a sum of positive squares in 4 ways, for example, as 11483479921 + 6897136401 = 107161^2 + 83049^2 .

It is not an unprimeable number, because it can be changed into a prime (18380616323) 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, 1459372 + ... + 1471912.

Almost surely, 2^18380616322 is an apocalyptic number.

18380616322 is a deficient number, since it is larger than the sum of its proper divisors (9342671990).

18380616322 is a wasteful number, since it uses less digits than its factorization.

18380616322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16533.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 18380616322 in words is "eighteen billion, three hundred eighty million, six hundred sixteen thousand, three hundred twenty-two".