2081012166 has 12 divisors (see below), whose sum is σ = 4508859732. Its totient is φ = 693670716.

The previous prime is 2081012137. The next prime is 2081012173. The reversal of 2081012166 is 6612101802.

2081012166 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2081012166² = 8661223270080023112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57805876 + ... + 57805911.

It is an arithmetic number, because the mean of its divisors is an integer number (375738311).

Almost surely, 2^2081012166 is an apocalyptic number.

2081012166 is an abundant number, since it is smaller than the sum of its proper divisors (2427847566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2081012166 is a wasteful number, since it uses less digits than its factorization.

2081012166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115611795 (or 115611792 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2081012166 is about 45618.1122581810. The cubic root of 2081012166 is about 1276.7078824083.

Adding to 2081012166 its reverse (6612101802), we get a palindrome (8693113968).

The spelling of 2081012166 in words is "two billion, eighty-one million, twelve thousand, one hundred sixty-six".