608455665 has 16 divisors (see below), whose sum is σ = 1081699200. Its totient is φ = 324509616.

The previous prime is 608455643. The next prime is 608455669. The reversal of 608455665 is 566554806.

It is a happy number.

608455665 is a `hidden beast` number, since 6 + 0 + 84 + 5 + 566 + 5 = 666.

It is not a de Polignac number, because 608455665 - 2¹¹ = 608453617 is a prime.

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 608455665.

It is not an unprimeable number, because it can be changed into a prime (608455669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253405 + ... + 2253674.

It is an arithmetic number, because the mean of its divisors is an integer number (67606200).

Almost surely, 2^608455665 is an apocalyptic number.

It is an amenable number.

608455665 is a deficient number, since it is larger than the sum of its proper divisors (473243535).

608455665 is a wasteful number, since it uses less digits than its factorization.

608455665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507093 (or 4507087 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 608455665 is about 24666.8941093118. The cubic root of 608455665 is about 847.3762995900.

The spelling of 608455665 in words is "six hundred eight million, four hundred fifty-five thousand, six hundred sixty-five".