345031666609 has 16 divisors (see below), whose sum is σ = 396579146368. Its totient is φ = 294053265792.

The previous prime is 345031666597. The next prime is 345031666631. The reversal of 345031666609 is 906666130543.

It is a cyclic number.

It is not a de Polignac number, because 345031666609 - 2⁹ = 345031666097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345031666909) 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, 671494 + ... + 1068160.

It is an arithmetic number, because the mean of its divisors is an integer number (24786196648).

Almost surely, 2^345031666609 is an apocalyptic number.

It is an amenable number.

345031666609 is a deficient number, since it is larger than the sum of its proper divisors (51547479759).

345031666609 is a wasteful number, since it uses less digits than its factorization.

345031666609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397384.

The product of its (nonzero) digits is 2099520, while the sum is 49.

The spelling of 345031666609 in words is "three hundred forty-five billion, thirty-one million, six hundred sixty-six thousand, six hundred nine".