4042507666 has 8 divisors (see below), whose sum is σ = 6081237360. Its totient is φ = 2015428548.

The previous prime is 4042507643. The next prime is 4042507699. The reversal of 4042507666 is 6667052404.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2911776 + ... + 2913163.

It is an arithmetic number, because the mean of its divisors is an integer number (760154670).

Almost surely, 2^4042507666 is an apocalyptic number.

4042507666 is a deficient number, since it is larger than the sum of its proper divisors (2038729694).

4042507666 is a wasteful number, since it uses less digits than its factorization.

4042507666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825288.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 4042507666 is about 63580.7177216489. The cubic root of 4042507666 is about 1593.0043096203.

The spelling of 4042507666 in words is "four billion, forty-two million, five hundred seven thousand, six hundred sixty-six".