2066844405 has 8 divisors (see below), whose sum is σ = 3306951072. Its totient is φ = 1102317008.

The previous prime is 2066844389. The next prime is 2066844463. The reversal of 2066844405 is 5044486602.

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

It is a cyclic number.

It is not a de Polignac number, because 2066844405 - 2⁴ = 2066844389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68894799 + ... + 68894828.

It is an arithmetic number, because the mean of its divisors is an integer number (413368884).

Almost surely, 2^2066844405 is an apocalyptic number.

It is an amenable number.

2066844405 is a deficient number, since it is larger than the sum of its proper divisors (1240106667).

2066844405 is a wasteful number, since it uses less digits than its factorization.

2066844405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137789635.

The product of its (nonzero) digits is 184320, while the sum is 39.

The square root of 2066844405 is about 45462.5604756265. The cubic root of 2066844405 is about 1273.8039595026.

The spelling of 2066844405 in words is "two billion, sixty-six million, eight hundred forty-four thousand, four hundred five".