1216418482143 has 12 divisors (see below), whose sum is σ = 1757301422448. Its totient is φ = 810829114560.

The previous prime is 1216418482117. The next prime is 1216418482157. The reversal of 1216418482143 is 3412848146121.

1216418482143 is a `hidden beast` number, since 1 + 2 + 16 + 4 + 18 + 482 + 143 = 666.

It is not a de Polignac number, because 1216418482143 - 2¹⁶ = 1216418416607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216418482183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9645555 + ... + 9770852.

It is an arithmetic number, because the mean of its divisors is an integer number (146441785204).

Almost surely, 2^{1216418482143} is an apocalyptic number.

1216418482143 is a deficient number, since it is larger than the sum of its proper divisors (540882940305).

1216418482143 is a wasteful number, since it uses less digits than its factorization.

1216418482143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19423374 (or 19423371 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The spelling of 1216418482143 in words is "one trillion, two hundred sixteen billion, four hundred eighteen million, four hundred eighty-two thousand, one hundred forty-three".