3351666685 has 4 divisors (see below), whose sum is σ = 4022000028. Its totient is φ = 2681333344.

The previous prime is 3351666623. The next prime is 3351666727. The reversal of 3351666685 is 5866661533.

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 1099784569 + 2251882116 = 33163^2 + 47454^2 .

It is a cyclic number.

It is not a de Polignac number, because 3351666685 - 2⁹ = 3351666173 is a prime.

It is a super-2 number, since 2×3351666685² = 22467339134677778450, which contains 22 as substring.

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, 335166664 + ... + 335166673.

It is an arithmetic number, because the mean of its divisors is an integer number (1005500007).

Almost surely, 2^3351666685 is an apocalyptic number.

It is an amenable number.

3351666685 is a deficient number, since it is larger than the sum of its proper divisors (670333343).

3351666685 is an equidigital number, since it uses as much as digits as its factorization.

3351666685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670333342.

The product of its digits is 2332800, while the sum is 49.

The square root of 3351666685 is about 57893.5806890539. The cubic root of 3351666685 is about 1496.5352156007.

The spelling of 3351666685 in words is "three billion, three hundred fifty-one million, six hundred sixty-six thousand, six hundred eighty-five".