3611606065 has 4 divisors (see below), whose sum is σ = 4333927284. Its totient is φ = 2889284848.

The previous prime is 3611606057. The next prime is 3611606069. The reversal of 3611606065 is 5606061163.

3611606065 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5606061163 = 61441 ⋅91243.

It can be written as a sum of positive squares in 2 ways, for example, as 2307457296 + 1304148769 = 48036^2 + 36113^2 .

It is a cyclic number.

It is not a de Polignac number, because 3611606065 - 2³ = 3611606057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3611606065.

It is not an unprimeable number, because it can be changed into a prime (3611606069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361160602 + ... + 361160611.

It is an arithmetic number, because the mean of its divisors is an integer number (1083481821).

Almost surely, 2^3611606065 is an apocalyptic number.

It is an amenable number.

3611606065 is a deficient number, since it is larger than the sum of its proper divisors (722321219).

3611606065 is an equidigital number, since it uses as much as digits as its factorization.

3611606065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722321218.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3611606065 is about 60096.6393819155. The cubic root of 3611606065 is about 1534.2641048852.

The spelling of 3611606065 in words is "three billion, six hundred eleven million, six hundred six thousand, sixty-five".