2066320843 has 4 divisors (see below), whose sum is σ = 2066413120. Its totient is φ = 2066228568.

The previous prime is 2066320819. The next prime is 2066320849. The reversal of 2066320843 is 3480236602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066320843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2066320799 and 2066320808.

It is not an unprimeable number, because it can be changed into a prime (2066320849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11221 + ... + 65257.

It is an arithmetic number, because the mean of its divisors is an integer number (516603280).

Almost surely, 2^2066320843 is an apocalyptic number.

2066320843 is a deficient number, since it is larger than the sum of its proper divisors (92277).

2066320843 is an equidigital number, since it uses as much as digits as its factorization.

2066320843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92276.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 2066320843 is about 45456.8019442635. The cubic root of 2066320843 is about 1273.6963926778.

The spelling of 2066320843 in words is "two billion, sixty-six million, three hundred twenty thousand, eight hundred forty-three".