2066906855 has 16 divisors (see below), whose sum is σ = 2672027904. Its totient is φ = 1525789440.

The previous prime is 2066906833. The next prime is 2066906867. The reversal of 2066906855 is 5586096602.

It is not a de Polignac number, because 2066906855 - 2¹⁰ = 2066905831 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348515 + ... + 354395.

It is an arithmetic number, because the mean of its divisors is an integer number (167001744).

Almost surely, 2^2066906855 is an apocalyptic number.

2066906855 is a deficient number, since it is larger than the sum of its proper divisors (605121049).

2066906855 is a wasteful number, since it uses less digits than its factorization.

2066906855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11306.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 2066906855 is about 45463.2472993296. The cubic root of 2066906855 is about 1273.8167887631.

The spelling of 2066906855 in words is "two billion, sixty-six million, nine hundred six thousand, eight hundred fifty-five".