16213232566656 has 192 divisors, whose sum is σ = 51246059904000. Its totient is φ = 4897360714752.

The previous prime is 16213232566651. The next prime is 16213232566691. The reversal of 16213232566656 is 65666523231261.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16213232566651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15599536 + ... + 16606383.

It is an arithmetic number, because the mean of its divisors is an integer number (266906562000).

Almost surely, 2^{16213232566656} is an apocalyptic number.

16213232566656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16213232566656 is an abundant number, since it is smaller than the sum of its proper divisors (35032827337344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16213232566656 is a wasteful number, since it uses less digits than its factorization.

16213232566656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205981 (or 32205966 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 16213232566656 in words is "sixteen trillion, two hundred thirteen billion, two hundred thirty-two million, five hundred sixty-six thousand, six hundred fifty-six".