2166874305 has 16 divisors (see below), whose sum is σ = 3487043520. Its totient is φ = 1148984768.

The previous prime is 2166874291. The next prime is 2166874309. The reversal of 2166874305 is 5034786612.

It is a cyclic number.

It is not a de Polignac number, because 2166874305 - 2⁸ = 2166874049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2166874309) 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, 414915 + ... + 420104.

It is an arithmetic number, because the mean of its divisors is an integer number (217940220).

Almost surely, 2^2166874305 is an apocalyptic number.

It is an amenable number.

2166874305 is a deficient number, since it is larger than the sum of its proper divisors (1320169215).

2166874305 is a wasteful number, since it uses less digits than its factorization.

2166874305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835200.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2166874305 is about 46549.6971526131. The cubic root of 2166874305 is about 1294.0306804492.

The spelling of 2166874305 in words is "two billion, one hundred sixty-six million, eight hundred seventy-four thousand, three hundred five".