216696568695104 has 28 divisors (see below), whose sum is σ = 430037543907444. Its totient is φ = 108340652120064.

The previous prime is 216696568695067. The next prime is 216696568695109. The reversal of 216696568695104 is 401596865696612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142856232253504 + 73840336441600 = 11952248^2 + 8593040^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216696568695109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118337849 + ... + 120155064.

Almost surely, 2^{216696568695104} is an apocalyptic number.

It is an amenable number.

216696568695104 is a deficient number, since it is larger than the sum of its proper divisors (213340975212340).

216696568695104 is a wasteful number, since it uses less digits than its factorization.

216696568695104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238507122 (or 238507112 counting only the distinct ones).

The product of its (nonzero) digits is 1007769600, while the sum is 74.

The spelling of 216696568695104 in words is "two hundred sixteen trillion, six hundred ninety-six billion, five hundred sixty-eight million, six hundred ninety-five thousand, one hundred four".