1216893064004 has 12 divisors (see below), whose sum is σ = 2130354834300. Its totient is φ = 608220254208.

The previous prime is 1216893063847. The next prime is 1216893064021. The reversal of 1216893064004 is 4004603986121.

It can be written as a sum of positive squares in 2 ways, for example, as 28509647104 + 1188383416900 = 168848^2 + 1090130^2 .

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 3 ways as a sum of consecutive naturals, for example, 56557349 + ... + 56578860.

It is an arithmetic number, because the mean of its divisors is an integer number (177529569525).

Almost surely, 2^{1216893064004} is an apocalyptic number.

It is an amenable number.

1216893064004 is a deficient number, since it is larger than the sum of its proper divisors (913461770296).

1216893064004 is a wasteful number, since it uses less digits than its factorization.

1216893064004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113138902 (or 113138900 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 1216893064004 in words is "one trillion, two hundred sixteen billion, eight hundred ninety-three million, sixty-four thousand, four".