1148843666881 has 16 divisors (see below), whose sum is σ = 1228102622208. Its totient is φ = 1072030220800.

The previous prime is 1148843666857. The next prime is 1148843666891. The reversal of 1148843666881 is 1886663488411.

It is not a de Polignac number, because 1148843666881 - 2¹³ = 1148843658689 is a prime.

It is a super-2 number, since 2×1148843666881² (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 (1148843666891) 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, 32843241 + ... + 32878201.

It is an arithmetic number, because the mean of its divisors is an integer number (76756413888).

Almost surely, 2^{1148843666881} is an apocalyptic number.

It is an amenable number.

1148843666881 is a deficient number, since it is larger than the sum of its proper divisors (79258955327).

1148843666881 is a wasteful number, since it uses less digits than its factorization.

1148843666881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69872.

The product of its digits is 42467328, while the sum is 64.

The spelling of 1148843666881 in words is "one trillion, one hundred forty-eight billion, eight hundred forty-three million, six hundred sixty-six thousand, eight hundred eighty-one".