2066955859 has 4 divisors (see below), whose sum is σ = 2082734280. Its totient is φ = 2051177440.

The previous prime is 2066955841. The next prime is 2066955871. The reversal of 2066955859 is 9585596602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066955859 - 2¹⁷ = 2066824787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066955259) 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, 7889014 + ... + 7889275.

It is an arithmetic number, because the mean of its divisors is an integer number (520683570).

Almost surely, 2^2066955859 is an apocalyptic number.

2066955859 is a deficient number, since it is larger than the sum of its proper divisors (15778421).

2066955859 is a wasteful number, since it uses less digits than its factorization.

2066955859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15778420.

The product of its (nonzero) digits is 5832000, while the sum is 55.

The square root of 2066955859 is about 45463.7862369601. The cubic root of 2066955859 is about 1273.8268555971.

The spelling of 2066955859 in words is "two billion, sixty-six million, nine hundred fifty-five thousand, eight hundred fifty-nine".