3636105661 has 8 divisors (see below), whose sum is σ = 3760084224. Its totient is φ = 3512544960.

The previous prime is 3636105653. The next prime is 3636105703. The reversal of 3636105661 is 1665016363.

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 3636105661 - 2³ = 3636105653 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 3636105661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636105461) 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, 86716 + ... + 121621.

It is an arithmetic number, because the mean of its divisors is an integer number (470010528).

Almost surely, 2^3636105661 is an apocalyptic number.

3636105661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3636105661 is a deficient number, since it is larger than the sum of its proper divisors (123978563).

3636105661 is a wasteful number, since it uses less digits than its factorization.

3636105661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208931.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 3636105661 is about 60300.1298588983. The cubic root of 3636105661 is about 1537.7255542007.

The spelling of 3636105661 in words is "three billion, six hundred thirty-six million, one hundred five thousand, six hundred sixty-one".