36568646161 has 8 divisors (see below), whose sum is σ = 38880410184. Its totient is φ = 34274734080.

The previous prime is 36568646137. The next prime is 36568646167. The reversal of 36568646161 is 16164686563.

It can be written as a sum of positive squares in 4 ways, for example, as 18311231761 + 18257414400 = 135319^2 + 135120^2 .

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 36568646161 - 2²⁹ = 36031775249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36568646099 and 36568646108.

It is not an unprimeable number, because it can be changed into a prime (36568646167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458760 + ... + 4466953.

It is an arithmetic number, because the mean of its divisors is an integer number (4860051273).

Almost surely, 2^36568646161 is an apocalyptic number.

It is an amenable number.

36568646161 is a deficient number, since it is larger than the sum of its proper divisors (2311764023).

36568646161 is a wasteful number, since it uses less digits than its factorization.

36568646161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925971.

The product of its digits is 3732480, while the sum is 52.

The spelling of 36568646161 in words is "thirty-six billion, five hundred sixty-eight million, six hundred forty-six thousand, one hundred sixty-one".