2081882066 has 32 divisors (see below), whose sum is σ = 3598442496. Its totient is φ = 894474000.

The previous prime is 2081882063. The next prime is 2081882119. The reversal of 2081882066 is 6602881802.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2081882063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6170 + ... + 64821.

It is an arithmetic number, because the mean of its divisors is an integer number (112451328).

Almost surely, 2^2081882066 is an apocalyptic number.

2081882066 is a deficient number, since it is larger than the sum of its proper divisors (1516560430).

2081882066 is a wasteful number, since it uses less digits than its factorization.

2081882066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71078.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 2081882066 is about 45627.6458520490. The cubic root of 2081882066 is about 1276.8857531403.

The spelling of 2081882066 in words is "two billion, eighty-one million, eight hundred eighty-two thousand, sixty-six".