2066620369 has 8 divisors (see below), whose sum is σ = 2254886208. Its totient is φ = 1878419760.

The previous prime is 2066620343. The next prime is 2066620397. The reversal of 2066620369 is 9630266602.

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-2066620369 is a prime.

It is a super-2 number, since 2×2066620369² = 8541839499131392322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066620399) 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 7 ways as a sum of consecutive naturals, for example, 69684 + ... + 94810.

It is an arithmetic number, because the mean of its divisors is an integer number (281860776).

Almost surely, 2^2066620369 is an apocalyptic number.

It is an amenable number.

2066620369 is a deficient number, since it is larger than the sum of its proper divisors (188265839).

2066620369 is a wasteful number, since it uses less digits than its factorization.

2066620369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32615.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 2066620369 is about 45460.0964473240. The cubic root of 2066620369 is about 1273.7579330972.

The spelling of 2066620369 in words is "two billion, sixty-six million, six hundred twenty thousand, three hundred sixty-nine".