2081166696 has 128 divisors (see below), whose sum is σ = 6688838400. Its totient is φ = 594584064.

The previous prime is 2081166677. The next prime is 2081166733. The reversal of 2081166696 is 6966611802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113976 + ... + 130968.

It is an arithmetic number, because the mean of its divisors is an integer number (52256550).

Almost surely, 2^2081166696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081166696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3344419200).

2081166696 is an abundant number, since it is smaller than the sum of its proper divisors (4607671704).

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

2081166696 is an equidigital number, since it uses as much as digits as its factorization.

2081166696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17027 (or 17005 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2081166696 is about 45619.8059618846. The cubic root of 2081166696 is about 1276.7394831824.

The spelling of 2081166696 in words is "two billion, eighty-one million, one hundred sixty-six thousand, six hundred ninety-six".