1166855784119 has 8 divisors (see below), whose sum is σ = 1167508521312. Its totient is φ = 1166203146240.

The previous prime is 1166855784097. The next prime is 1166855784169. The reversal of 1166855784119 is 9114875586611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1166855784119 - 2¹⁶ = 1166855718583 is a prime.

It is a super-2 number, since 2×1166855784119² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166855784169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42632999 + ... + 42660359.

It is an arithmetic number, because the mean of its divisors is an integer number (145938565164).

Almost surely, 2^{1166855784119} is an apocalyptic number.

1166855784119 is a deficient number, since it is larger than the sum of its proper divisors (652737193).

1166855784119 is a wasteful number, since it uses less digits than its factorization.

1166855784119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49657.

The product of its digits is 14515200, while the sum is 62.

The spelling of 1166855784119 in words is "one trillion, one hundred sixty-six billion, eight hundred fifty-five million, seven hundred eighty-four thousand, one hundred nineteen".