1216896527616 has 432 divisors, whose sum is σ = 4282647667200. Its totient is φ = 299438346240.

The previous prime is 1216896527599. The next prime is 1216896527653. The reversal of 1216896527616 is 6167256986121.

It is a self number, because there is not a number n which added to its sum of digits gives 1216896527616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12310195 + ... + 12408653.

Almost surely, 2^{1216896527616} is an apocalyptic number.

1216896527616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1216896527616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2141323833600).

1216896527616 is an abundant number, since it is smaller than the sum of its proper divisors (3065751139584).

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

1216896527616 is a wasteful number, since it uses less digits than its factorization.

1216896527616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98526 (or 98501 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 60.

The spelling of 1216896527616 in words is "one trillion, two hundred sixteen billion, eight hundred ninety-six million, five hundred twenty-seven thousand, six hundred sixteen".