3666580695 has 64 divisors (see below), whose sum is σ = 6678144000. Its totient is φ = 1908137088.

The previous prime is 3666580681. The next prime is 3666580699. The reversal of 3666580695 is 5960856663.

It is not a de Polignac number, because 3666580695 - 2¹⁰ = 3666579671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666580699) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 984046 + ... + 987764.

It is an arithmetic number, because the mean of its divisors is an integer number (104346000).

Almost surely, 2^3666580695 is an apocalyptic number.

3666580695 is a deficient number, since it is larger than the sum of its proper divisors (3011563305).

3666580695 is a wasteful number, since it uses less digits than its factorization.

3666580695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3903 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The square root of 3666580695 is about 60552.2971901149. The cubic root of 3666580695 is about 1542.0096177995.

The spelling of 3666580695 in words is "three billion, six hundred sixty-six million, five hundred eighty thousand, six hundred ninety-five".