666295 has 8 divisors (see below), whose sum is σ = 913824. Its totient is φ = 456864.

The previous prime is 666277. The next prime is 666301. The reversal of 666295 is 592666.

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

It is a cyclic number.

It is not a de Polignac number, because 666295 - 2⁷ = 666167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666295.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9484 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (114228).

2⁶⁶⁶²⁹⁵ is an apocalyptic number.

666295 is a deficient number, since it is larger than the sum of its proper divisors (247529).

666295 is a wasteful number, since it uses less digits than its factorization.

666295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19049.

The product of its digits is 19440, while the sum is 34.

The square root of 666295 is about 816.2689507754. The cubic root of 666295 is about 87.3418094189.

It can be divided in two parts, 666 and 295, that added together give a square (961 = 31²).

The spelling of 666295 in words is "six hundred sixty-six thousand, two hundred ninety-five".