3366668666869 has 4 divisors (see below), whose sum is σ = 3366730380940. Its totient is φ = 3366606952800.

The previous prime is 3366668666863. The next prime is 3366668666909. The reversal of 3366668666869 is 9686668666633.

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 958157111025 + 2408511555844 = 978855^2 + 1551938^2 .

It is a cyclic number.

It is not a de Polignac number, because 3366668666869 - 2⁷ = 3366668666741 is a prime.

It is a super-2 number, since 2×3366668666869² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3366668666863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30775134 + ... + 30884335.

It is an arithmetic number, because the mean of its divisors is an integer number (841682595235).

Almost surely, 2^{3366668666869} is an apocalyptic number.

It is an amenable number.

3366668666869 is a deficient number, since it is larger than the sum of its proper divisors (61714071).

3366668666869 is an equidigital number, since it uses as much as digits as its factorization.

3366668666869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61714070.

The product of its digits is 8707129344, while the sum is 79.

The spelling of 3366668666869 in words is "three trillion, three hundred sixty-six billion, six hundred sixty-eight million, six hundred sixty-six thousand, eight hundred sixty-nine".