665466465 has 8 divisors (see below), whose sum is σ = 1064746368. Its totient is φ = 354915440.

The previous prime is 665466437. The next prime is 665466493. The reversal of 665466465 is 564664566.

It is a happy number.

665466465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (665466437) and next prime (665466493).

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

It is not a de Polignac number, because 665466465 - 2⁸ = 665466209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22182201 + ... + 22182230.

It is an arithmetic number, because the mean of its divisors is an integer number (133093296).

Almost surely, 2^665466465 is an apocalyptic number.

It is an amenable number.

665466465 is a deficient number, since it is larger than the sum of its proper divisors (399279903).

665466465 is a wasteful number, since it uses less digits than its factorization.

665466465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44364439.

The product of its digits is 3110400, while the sum is 48.

The square root of 665466465 is about 25796.6366993839. The cubic root of 665466465 is about 873.0559134617.

The spelling of 665466465 in words is "six hundred sixty-five million, four hundred sixty-six thousand, four hundred sixty-five".