4005666273 has 8 divisors (see below), whose sum is σ = 6103872448. Its totient is φ = 2288952144.

The previous prime is 4005666263. The next prime is 4005666307. The reversal of 4005666273 is 3726665004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4005666273 - 2¹⁷ = 4005535201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4005666263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95372986 + ... + 95373027.

It is an arithmetic number, because the mean of its divisors is an integer number (762984056).

Almost surely, 2^4005666273 is an apocalyptic number.

It is an amenable number.

4005666273 is a deficient number, since it is larger than the sum of its proper divisors (2098206175).

4005666273 is a wasteful number, since it uses less digits than its factorization.

4005666273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190746023.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 4005666273 is about 63290.3331718202. Note that the first 3 decimals coincide. The cubic root of 4005666273 is about 1588.1502522918.

The spelling of 4005666273 in words is "four billion, five million, six hundred sixty-six thousand, two hundred seventy-three".