216664014160544 has 24 divisors (see below), whose sum is σ = 430332121052820. Its totient is φ = 107373316750336.

The previous prime is 216664014160513. The next prime is 216664014160547. The reversal of 216664014160544 is 445061410466612.

It can be written as a sum of positive squares in 2 ways, for example, as 141271956380944 + 75392057779600 = 11885788^2 + 8682860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216664014160492 and 216664014160501.

It is not an unprimeable number, because it can be changed into a prime (216664014160547) 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, 29959069139 + ... + 29959076370.

Almost surely, 2^{216664014160544} is an apocalyptic number.

It is an amenable number.

216664014160544 is a deficient number, since it is larger than the sum of its proper divisors (213668106892276).

216664014160544 is a wasteful number, since it uses less digits than its factorization.

216664014160544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59918145632 (or 59918145624 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 216664014160544 in words is "two hundred sixteen trillion, six hundred sixty-four billion, fourteen million, one hundred sixty thousand, five hundred forty-four".