1166828873481 has 16 divisors (see below), whose sum is σ = 1730937176320. Its totient is φ = 776850102000.

The previous prime is 1166828873443. The next prime is 1166828873489. The reversal of 1166828873481 is 1843788286611.

It is a happy number.

1166828873481 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 8 + 2 + 88 + 73 + 481 = 666.

It is not a de Polignac number, because 1166828873481 - 2¹¹ = 1166828871433 is a prime.

It is a super-2 number, since 2×1166828873481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166828873489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28751950 + ... + 28792503.

It is an arithmetic number, because the mean of its divisors is an integer number (108183573520).

Almost surely, 2^{1166828873481} is an apocalyptic number.

It is an amenable number.

1166828873481 is a deficient number, since it is larger than the sum of its proper divisors (564108302839).

1166828873481 is an equidigital number, since it uses as much as digits as its factorization.

1166828873481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57545213 (or 57545207 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The spelling of 1166828873481 in words is "one trillion, one hundred sixty-six billion, eight hundred twenty-eight million, eight hundred seventy-three thousand, four hundred eighty-one".