216244236120064 has 208 divisors, whose sum is σ = 455585024125440. Its totient is φ = 102425541672960.

The previous prime is 216244236120053. The next prime is 216244236120079. The reversal of 216244236120064 is 460021632442612.

It is a self number, because there is not a number n which added to its sum of digits gives 216244236120064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34615690189 + ... + 34615696435.

Almost surely, 2^{216244236120064} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216244236120064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227792512062720).

216244236120064 is an abundant number, since it is smaller than the sum of its proper divisors (239340788005376).

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

216244236120064 is a wasteful number, since it uses less digits than its factorization.

216244236120064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774 (or 9752 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

Adding to 216244236120064 its reverse (460021632442612), we get a palindrome (676265868562676).

The spelling of 216244236120064 in words is "two hundred sixteen trillion, two hundred forty-four billion, two hundred thirty-six million, one hundred twenty thousand, sixty-four".