3666536611 has 4 divisors (see below), whose sum is σ = 3666875832. Its totient is φ = 3666197392.

The previous prime is 3666536567. The next prime is 3666536623. The reversal of 3666536611 is 1166356663.

3666536611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3666536611 - 2⁷ = 3666536483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666536681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152845 + ... + 175198.

It is an arithmetic number, because the mean of its divisors is an integer number (916718958).

Almost surely, 2^3666536611 is an apocalyptic number.

3666536611 is a deficient number, since it is larger than the sum of its proper divisors (339221).

3666536611 is a wasteful number, since it uses less digits than its factorization.

3666536611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339220.

The product of its digits is 349920, while the sum is 43.

The square root of 3666536611 is about 60551.9331731036. The cubic root of 3666536611 is about 1542.0034378160.

The spelling of 3666536611 in words is "three billion, six hundred sixty-six million, five hundred thirty-six thousand, six hundred eleven".