16551284338 has 16 divisors (see below), whose sum is σ = 25742739456. Its totient is φ = 7972765920.

The previous prime is 16551284297. The next prime is 16551284339. The reversal of 16551284338 is 83348215561.

16551284338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16551284339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584731 + ... + 612382.

It is an arithmetic number, because the mean of its divisors is an integer number (1608921216).

Almost surely, 2^16551284338 is an apocalyptic number.

16551284338 is a deficient number, since it is larger than the sum of its proper divisors (9191455118).

16551284338 is a wasteful number, since it uses less digits than its factorization.

16551284338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197369.

The product of its digits is 691200, while the sum is 46.

Adding to 16551284338 its reverse (83348215561), we get a palindrome (99899499899).

The spelling of 16551284338 in words is "sixteen billion, five hundred fifty-one million, two hundred eighty-four thousand, three hundred thirty-eight".