3641661611 has 8 divisors (see below), whose sum is σ = 4166031840. Its totient is φ = 3118324608.

The previous prime is 3641661601. The next prime is 3641661649. The reversal of 3641661611 is 1161661463.

3641661611 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3641661611 - 2¹⁸ = 3641399467 is a prime.

It is a super-2 number, since 2×3641661611² = 26523398578062230642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3641661601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250736 + ... + 264861.

It is an arithmetic number, because the mean of its divisors is an integer number (520753980).

Almost surely, 2^3641661611 is an apocalyptic number.

3641661611 is a deficient number, since it is larger than the sum of its proper divisors (524370229).

3641661611 is a wasteful number, since it uses less digits than its factorization.

3641661611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516613.

The product of its digits is 15552, while the sum is 35.

The square root of 3641661611 is about 60346.1814119170. The cubic root of 3641661611 is about 1538.5083677647.

The spelling of 3641661611 in words is "three billion, six hundred forty-one million, six hundred sixty-one thousand, six hundred eleven".