346626656661 has 16 divisors (see below), whose sum is σ = 497649441600. Its totient is φ = 213804941568.

The previous prime is 346626656573. The next prime is 346626656671. The reversal of 346626656661 is 166656626643.

It is not a de Polignac number, because 346626656661 - 2¹⁰ = 346626655637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346626656671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57595306 + ... + 57601323.

It is an arithmetic number, because the mean of its divisors is an integer number (31103090100).

Almost surely, 2^346626656661 is an apocalyptic number.

It is an amenable number.

346626656661 is a deficient number, since it is larger than the sum of its proper divisors (151022784939).

346626656661 is a wasteful number, since it uses less digits than its factorization.

346626656661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115196708.

The product of its digits is 33592320, while the sum is 57.

The spelling of 346626656661 in words is "three hundred forty-six billion, six hundred twenty-six million, six hundred fifty-six thousand, six hundred sixty-one".