3200166685 has 4 divisors (see below), whose sum is σ = 3840200028. Its totient is φ = 2560133344.

The previous prime is 3200166679. The next prime is 3200166731. The reversal of 3200166685 is 5866610023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2325071961 + 875094724 = 48219^2 + 29582^2 .

It is a cyclic number.

It is not a de Polignac number, because 3200166685 - 2³ = 3200166677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320016664 + ... + 320016673.

It is an arithmetic number, because the mean of its divisors is an integer number (960050007).

Almost surely, 2^3200166685 is an apocalyptic number.

It is an amenable number.

3200166685 is a deficient number, since it is larger than the sum of its proper divisors (640033343).

3200166685 is an equidigital number, since it uses as much as digits as its factorization.

3200166685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640033342.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 3200166685 is about 56570.0157769114. The cubic root of 3200166685 is about 1473.6381853782.

The spelling of 3200166685 in words is "three billion, two hundred million, one hundred sixty-six thousand, six hundred eighty-five".