16216715656 has 16 divisors (see below), whose sum is σ = 30443939100. Its totient is φ = 8098331904.

The previous prime is 16216715611. The next prime is 16216715657. The reversal of 16216715656 is 65651761261.

16216715656 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 2 ways, for example, as 15791943556 + 424772100 = 125666^2 + 20610^2 .

It is not an unprimeable number, because it can be changed into a prime (16216715657) 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 3 ways as a sum of consecutive naturals, for example, 1246365 + ... + 1259308.

Almost surely, 2^16216715656 is an apocalyptic number.

It is an amenable number.

16216715656 is a deficient number, since it is larger than the sum of its proper divisors (14227223444).

16216715656 is a wasteful number, since it uses less digits than its factorization.

16216715656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506488 (or 2506484 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The spelling of 16216715656 in words is "sixteen billion, two hundred sixteen million, seven hundred fifteen thousand, six hundred fifty-six".