3683561161 has 16 divisors (see below), whose sum is σ = 4241326720. Its totient is φ = 3133728000.

The previous prime is 3683561149. The next prime is 3683561171. The reversal of 3683561161 is 1611653863.

It is a cyclic number.

It is not a de Polignac number, because 3683561161 - 2²⁷ = 3549343433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3683561171) 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 15 ways as a sum of consecutive naturals, for example, 1635286 + ... + 1637536.

It is an arithmetic number, because the mean of its divisors is an integer number (265082920).

Almost surely, 2^3683561161 is an apocalyptic number.

It is an amenable number.

3683561161 is a deficient number, since it is larger than the sum of its proper divisors (557765559).

3683561161 is a wasteful number, since it uses less digits than its factorization.

3683561161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904.

The product of its digits is 77760, while the sum is 40.

The square root of 3683561161 is about 60692.3484551389. The cubic root of 3683561161 is about 1544.3863757876.

The spelling of 3683561161 in words is "three billion, six hundred eighty-three million, five hundred sixty-one thousand, one hundred sixty-one".