2066242609 has 8 divisors (see below), whose sum is σ = 2185304480. Its totient is φ = 1948212000.

The previous prime is 2066242573. The next prime is 2066242613. The reversal of 2066242609 is 9062426602.

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-2066242609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066242649) 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, 253692 + ... + 261709.

It is an arithmetic number, because the mean of its divisors is an integer number (273163060).

Almost surely, 2^2066242609 is an apocalyptic number.

It is an amenable number.

2066242609 is a deficient number, since it is larger than the sum of its proper divisors (119061871).

2066242609 is a wasteful number, since it uses less digits than its factorization.

2066242609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515631.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 2066242609 is about 45455.9414048373. The cubic root of 2066242609 is about 1273.6803177910.

The spelling of 2066242609 in words is "two billion, sixty-six million, two hundred forty-two thousand, six hundred nine".