16216404436 has 6 divisors (see below), whose sum is σ = 28378707770. Its totient is φ = 8108202216.

The previous prime is 16216404401. The next prime is 16216404443. The reversal of 16216404436 is 63440461261.

16216404436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15883560900 + 332843536 = 126030^2 + 18244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16216404395 and 16216404404.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2027050551 + ... + 2027050558.

Almost surely, 2^16216404436 is an apocalyptic number.

It is an amenable number.

16216404436 is a deficient number, since it is larger than the sum of its proper divisors (12162303334).

16216404436 is a wasteful number, since it uses less digits than its factorization.

16216404436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054101113 (or 4054101111 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 16216404436 its reverse (63440461261), we get a palindrome (79656865697).

The spelling of 16216404436 in words is "sixteen billion, two hundred sixteen million, four hundred four thousand, four hundred thirty-six".