2066382643 has 8 divisors (see below), whose sum is σ = 2225706336. Its totient is φ = 1907112000.

The previous prime is 2066382631. The next prime is 2066382649. The reversal of 2066382643 is 3462836602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066382643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2066382596 and 2066382605.

It is not an unprimeable number, because it can be changed into a prime (2066382649) 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, 110418 + ... + 127768.

It is an arithmetic number, because the mean of its divisors is an integer number (278213292).

Almost surely, 2^2066382643 is an apocalyptic number.

2066382643 is a deficient number, since it is larger than the sum of its proper divisors (159323693).

2066382643 is a wasteful number, since it uses less digits than its factorization.

2066382643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26525.

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 2066382643 is about 45457.4817054355. The cubic root of 2066382643 is about 1273.7090905530.

The spelling of 2066382643 in words is "two billion, sixty-six million, three hundred eighty-two thousand, six hundred forty-three".