6500601605 has 8 divisors (see below), whose sum is σ = 7806975000. Its totient is φ = 5196312576.

The previous prime is 6500601589. The next prime is 6500601629. The reversal of 6500601605 is 5061060056.

It can be written as a sum of positive squares in 4 ways, for example, as 2357490916 + 4143110689 = 48554^2 + 64367^2 .

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 6500601605 - 2⁴ = 6500601589 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514220 + ... + 526709.

It is an arithmetic number, because the mean of its divisors is an integer number (975871875).

Almost surely, 2^6500601605 is an apocalyptic number.

It is an amenable number.

6500601605 is a deficient number, since it is larger than the sum of its proper divisors (1306373395).

6500601605 is a wasteful number, since it uses less digits than its factorization.

6500601605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042183.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6500601605 is about 80626.3083924844. The cubic root of 6500601605 is about 1866.3131534881.

The spelling of 6500601605 in words is "six billion, five hundred million, six hundred one thousand, six hundred five".