665504042 has 8 divisors (see below), whose sum is σ = 1140864096. Its totient is φ = 285216012.

The previous prime is 665504033. The next prime is 665504053. The reversal of 665504042 is 240405566.

665504042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23767988 + ... + 23768015.

It is an arithmetic number, because the mean of its divisors is an integer number (142608012).

Almost surely, 2^665504042 is an apocalyptic number.

665504042 is a deficient number, since it is larger than the sum of its proper divisors (475360054).

665504042 is a wasteful number, since it uses less digits than its factorization.

665504042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47536012.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 665504042 is about 25797.3650204822. The cubic root of 665504042 is about 873.0723461478.

The spelling of 665504042 in words is "six hundred sixty-five million, five hundred four thousand, forty-two".