3600105561 has 16 divisors (see below), whose sum is σ = 5743758720. Its totient is φ = 2215449360.

The previous prime is 3600105557. The next prime is 3600105563. The reversal of 3600105561 is 1655010063.

It is a happy number.

3600105561 is a `hidden beast` number, since 3 + 600 + 1 + 0 + 5 + 56 + 1 = 666.

It is not a de Polignac number, because 3600105561 - 2² = 3600105557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3600105563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5128005 + ... + 5128706.

It is an arithmetic number, because the mean of its divisors is an integer number (358984920).

Almost surely, 2^3600105561 is an apocalyptic number.

It is an amenable number.

3600105561 is a deficient number, since it is larger than the sum of its proper divisors (2143653159).

3600105561 is a wasteful number, since it uses less digits than its factorization.

3600105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256733 (or 10256727 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 3600105561 is about 60000.8796685515. The cubic root of 3600105561 is about 1532.6338447129.

The spelling of 3600105561 in words is "three billion, six hundred million, one hundred five thousand, five hundred sixty-one".