669495585 has 32 divisors (see below), whose sum is σ = 1177021440. Its totient is φ = 322257600.

The previous prime is 669495559. The next prime is 669495587. The reversal of 669495585 is 585594966.

It is not a de Polignac number, because 669495585 - 2⁵ = 669495553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (669495587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8340 + ... + 37530.

It is an arithmetic number, because the mean of its divisors is an integer number (36781920).

Almost surely, 2^669495585 is an apocalyptic number.

It is an amenable number.

669495585 is a deficient number, since it is larger than the sum of its proper divisors (507525855).

669495585 is a wasteful number, since it uses less digits than its factorization.

669495585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29349.

The product of its digits is 11664000, while the sum is 57.

The square root of 669495585 is about 25874.6127507254. The cubic root of 669495585 is about 874.8143649733.

The spelling of 669495585 in words is "six hundred sixty-nine million, four hundred ninety-five thousand, five hundred eighty-five".