3665543322211 has 8 divisors (see below), whose sum is σ = 3672801198864. Its totient is φ = 3658292110560.

The previous prime is 3665543322209. The next prime is 3665543322251. The reversal of 3665543322211 is 1122233455663.

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 3665543322211 - 2¹ = 3665543322209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3665543322251) 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, 564505 + ... + 2765818.

It is an arithmetic number, because the mean of its divisors is an integer number (459100149858).

Almost surely, 2^{3665543322211} is an apocalyptic number.

3665543322211 is a deficient number, since it is larger than the sum of its proper divisors (7257876653).

3665543322211 is a wasteful number, since it uses less digits than its factorization.

3665543322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332501.

The product of its digits is 777600, while the sum is 43.

Adding to 3665543322211 its reverse (1122233455663), we get a palindrome (4787776777874).

The spelling of 3665543322211 in words is "three trillion, six hundred sixty-five billion, five hundred forty-three million, three hundred twenty-two thousand, two hundred eleven".