65161706530 has 8 divisors (see below), whose sum is σ = 117291071772. Its totient is φ = 26064682608.

The previous prime is 65161706447. The next prime is 65161706531. The reversal of 65161706530 is 3560716156.

It can be written as a sum of positive squares in 2 ways, for example, as 58652605489 + 6509101041 = 242183^2 + 80679^2 .

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

It is not an unprimeable number, because it can be changed into a prime (65161706531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258085317 + ... + 3258085336.

Almost surely, 2^65161706530 is an apocalyptic number.

65161706530 is a deficient number, since it is larger than the sum of its proper divisors (52129365242).

65161706530 is a wasteful number, since it uses less digits than its factorization.

65161706530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516170660.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 65161706530 in words is "sixty-five billion, one hundred sixty-one million, seven hundred six thousand, five hundred thirty".