1216160213783 has 4 divisors (see below), whose sum is σ = 1216164941568. Its totient is φ = 1216155486000.

The previous prime is 1216160213773. The next prime is 1216160213893. The reversal of 1216160213783 is 3873120616121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1216160213783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1216160213783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216160213753) by changing a digit.

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, 1954391 + ... + 2500392.

It is an arithmetic number, because the mean of its divisors is an integer number (304041235392).

Almost surely, 2^{1216160213783} is an apocalyptic number.

1216160213783 is a deficient number, since it is larger than the sum of its proper divisors (4727785).

1216160213783 is an equidigital number, since it uses as much as digits as its factorization.

1216160213783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727784.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 1216160213783 in words is "one trillion, two hundred sixteen billion, one hundred sixty million, two hundred thirteen thousand, seven hundred eighty-three".