668034585 has 24 divisors (see below), whose sum is σ = 1218871680. Its totient is φ = 337532832.

The previous prime is 668034583. The next prime is 668034589. The reversal of 668034585 is 585430866.

668034585 is a `hidden beast` number, since 6 + 68 + 0 + 3 + 4 + 585 = 666.

668034585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 668034585 - 2¹ = 668034583 is a prime.

It is a super-2 number, since 2×668034585² = 892540413512244450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 668034585.

It is not an unprimeable number, because it can be changed into a prime (668034583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389809 + ... + 391518.

It is an arithmetic number, because the mean of its divisors is an integer number (50786320).

Almost surely, 2^668034585 is an apocalyptic number.

It is an amenable number.

668034585 is a deficient number, since it is larger than the sum of its proper divisors (550837095).

668034585 is a wasteful number, since it uses less digits than its factorization.

668034585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781357 (or 781354 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 668034585 is about 25846.3650248928. The cubic root of 668034585 is about 874.1775499071.

The spelling of 668034585 in words is "six hundred sixty-eight million, thirty-four thousand, five hundred eighty-five".