3685341665566 has 32 divisors (see below), whose sum is σ = 6035294676096. Its totient is φ = 1673840364000.

The previous prime is 3685341665549. The next prime is 3685341665701. The reversal of 3685341665566 is 6655661435863.

It is a junction number, because it is equal to n+sod(n) for n = 3685341665498 and 3685341665507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199273816 + ... + 199292308.

It is an arithmetic number, because the mean of its divisors is an integer number (188602958628).

Almost surely, 2^{3685341665566} is an apocalyptic number.

3685341665566 is a deficient number, since it is larger than the sum of its proper divisors (2349953010530).

3685341665566 is a wasteful number, since it uses less digits than its factorization.

3685341665566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25128.

The product of its digits is 279936000, while the sum is 64.

The spelling of 3685341665566 in words is "three trillion, six hundred eighty-five billion, three hundred forty-one million, six hundred sixty-five thousand, five hundred sixty-six".