346663366643 has 4 divisors (see below), whose sum is σ = 378178218168. Its totient is φ = 315148515120.

The previous prime is 346663366627. The next prime is 346663366649.

346663366643 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 346663366643 - 2⁴ = 346663366627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346663366649) 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, 15757425746 + ... + 15757425767.

It is an arithmetic number, because the mean of its divisors is an integer number (94544554542).

Almost surely, 2^346663366643 is an apocalyptic number.

346663366643 is a deficient number, since it is larger than the sum of its proper divisors (31514851525).

346663366643 is a wasteful number, since it uses less digits than its factorization.

346663366643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31514851524.

The product of its digits is 60466176, while the sum is 56.

The spelling of 346663366643 in words is "three hundred forty-six billion, six hundred sixty-three million, three hundred sixty-six thousand, six hundred forty-three".