343636665689 has 16 divisors (see below), whose sum is σ = 346641410304. Its totient is φ = 340644268800.

The previous prime is 343636665683. The next prime is 343636665727. The reversal of 343636665689 is 986566636343.

It is a cyclic number.

It is not a de Polignac number, because 343636665689 - 2⁸ = 343636665433 is a prime.

It is a super-3 number, since 3×343636665689³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343636665683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135129152 + ... + 135131694.

It is an arithmetic number, because the mean of its divisors is an integer number (21665088144).

Almost surely, 2^343636665689 is an apocalyptic number.

It is an amenable number.

343636665689 is a deficient number, since it is larger than the sum of its proper divisors (3004744615).

343636665689 is a wasteful number, since it uses less digits than its factorization.

With its successor (343636665690) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (4528).

343636665689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528.

The product of its digits is 302330880, while the sum is 65.

The spelling of 343636665689 in words is "three hundred forty-three billion, six hundred thirty-six million, six hundred sixty-five thousand, six hundred eighty-nine".