1983603816216 has 128 divisors (see below), whose sum is σ = 6011383334400. Its totient is φ = 601045799040.

The previous prime is 1983603816199. The next prime is 1983603816217. The reversal of 1983603816216 is 6126183063891.

1983603816216 is a `hidden beast` number, since 1 + 9 + 8 + 3 + 6 + 0 + 3 + 8 + 1 + 621 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983603816217) 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 31 ways as a sum of consecutive naturals, for example, 42927861 + ... + 42974043.

It is an arithmetic number, because the mean of its divisors is an integer number (46963932300).

Almost surely, 2^{1983603816216} is an apocalyptic number.

It is an amenable number.

1983603816216 is an abundant number, since it is smaller than the sum of its proper divisors (4027779518184).

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

1983603816216 is a wasteful number, since it uses less digits than its factorization.

1983603816216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64286 (or 64276 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 1983603816216 in words is "one trillion, nine hundred eighty-three billion, six hundred three million, eight hundred sixteen thousand, two hundred sixteen".