3666705065 has 24 divisors (see below), whose sum is σ = 4479025344. Its totient is φ = 2881476000.

The previous prime is 3666705023. The next prime is 3666705083. The reversal of 3666705065 is 5605076663.

It is not a de Polignac number, because 3666705065 - 2¹² = 3666700969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12956414 + ... + 12956696.

It is an arithmetic number, because the mean of its divisors is an integer number (186626056).

Almost surely, 2^3666705065 is an apocalyptic number.

It is an amenable number.

3666705065 is a deficient number, since it is larger than the sum of its proper divisors (812320279).

3666705065 is a wasteful number, since it uses less digits than its factorization.

3666705065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 44.

The square root of 3666705065 is about 60553.3241449221. The cubic root of 3666705065 is about 1542.0270525326.

The spelling of 3666705065 in words is "three billion, six hundred sixty-six million, seven hundred five thousand, sixty-five".