665046159 has 8 divisors (see below), whose sum is σ = 886853040. Its totient is φ = 443301696.

The previous prime is 665046149. The next prime is 665046167. The reversal of 665046159 is 951640566.

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

It is not a de Polignac number, because 665046159 - 2¹¹ = 665044111 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 665046159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665046119) 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 7 ways as a sum of consecutive naturals, for example, 22677 + ... + 42945.

It is an arithmetic number, because the mean of its divisors is an integer number (110856630).

Almost surely, 2^665046159 is an apocalyptic number.

665046159 is a deficient number, since it is larger than the sum of its proper divisors (221806881).

665046159 is a wasteful number, since it uses less digits than its factorization.

665046159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31209.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 665046159 is about 25788.4888855474. The cubic root of 665046159 is about 872.8720685249.

The spelling of 665046159 in words is "six hundred sixty-five million, forty-six thousand, one hundred fifty-nine".