2166202094 has 24 divisors (see below), whose sum is σ = 3791408400. Its totient is φ = 927849888.

The previous prime is 2166202091. The next prime is 2166202109. The reversal of 2166202094 is 4902026612.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2166202094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166202091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1218134 + ... + 1219910.

It is an arithmetic number, because the mean of its divisors is an integer number (157975350).

Almost surely, 2^2166202094 is an apocalyptic number.

2166202094 is a deficient number, since it is larger than the sum of its proper divisors (1625206306).

2166202094 is an frugal number, since it uses more digits than its factorization.

2166202094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2166202094 is about 46542.4762340811. The cubic root of 2166202094 is about 1293.8968545629.

The spelling of 2166202094 in words is "two billion, one hundred sixty-six million, two hundred two thousand, ninety-four".