346666319680 has 28 divisors (see below), whose sum is σ = 825499174500. Its totient is φ = 138666527744.

The previous prime is 346666319677. The next prime is 346666319683. The reversal of 346666319680 is 86913666643.

It is an interprime number because it is at equal distance from previous prime (346666319677) and next prime (346666319683).

It can be written as a sum of positive squares in 2 ways, for example, as 68338325056 + 278327994624 = 261416^2 + 527568^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346666319683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541665805 + ... + 541666444.

It is an arithmetic number, because the mean of its divisors is an integer number (29482113375).

Almost surely, 2^346666319680 is an apocalyptic number.

It is an amenable number.

346666319680 is an abundant number, since it is smaller than the sum of its proper divisors (478832854820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

346666319680 is a wasteful number, since it uses less digits than its factorization.

346666319680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083332266 (or 1083332256 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 346666319680 in words is "three hundred forty-six billion, six hundred sixty-six million, three hundred nineteen thousand, six hundred eighty".