2066566003 has 4 divisors (see below), whose sum is σ = 2082341448. Its totient is φ = 2050790560.

The previous prime is 2066565967. The next prime is 2066566039. The reversal of 2066566003 is 3006656602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3006656602 = 2 ⋅1503328301.

It is an interprime number because it is at equal distance from previous prime (2066565967) and next prime (2066566039).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066566003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2066566003.

It is not an unprimeable number, because it can be changed into a prime (2066566043) 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, 7887526 + ... + 7887787.

It is an arithmetic number, because the mean of its divisors is an integer number (520585362).

Almost surely, 2^2066566003 is an apocalyptic number.

2066566003 is a deficient number, since it is larger than the sum of its proper divisors (15775445).

2066566003 is a wasteful number, since it uses less digits than its factorization.

2066566003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15775444.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 2066566003 is about 45459.4984904145. The cubic root of 2066566003 is about 1273.7467635355.

It can be divided in two parts, 20665 and 66003, that added together give a palindrome (86668).

The spelling of 2066566003 in words is "two billion, sixty-six million, five hundred sixty-six thousand, three".