2081366348980 has 12 divisors (see below), whose sum is σ = 4370869332900. Its totient is φ = 832546539584.

The previous prime is 2081366348969. The next prime is 2081366348981. The reversal of 2081366348980 is 898436631802.

It can be written as a sum of positive squares in 2 ways, for example, as 1583263525284 + 498102823696 = 1258278^2 + 705764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081366348981) 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, 52034158705 + ... + 52034158744.

It is an arithmetic number, because the mean of its divisors is an integer number (364239111075).

Almost surely, 2^{2081366348980} is an apocalyptic number.

2081366348980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2081366348980 is an abundant number, since it is smaller than the sum of its proper divisors (2289502983920).

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

2081366348980 is a wasteful number, since it uses less digits than its factorization.

2081366348980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104068317458 (or 104068317456 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 2081366348980 in words is "two trillion, eighty-one billion, three hundred sixty-six million, three hundred forty-eight thousand, nine hundred eighty".