346155946561 has 4 divisors (see below), whose sum is σ = 349331689300. Its totient is φ = 342980203824.

The previous prime is 346155946553. The next prime is 346155946639. The reversal of 346155946561 is 165649551643.

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

It can be written as a sum of positive squares in 2 ways, for example, as 298247054400 + 47908892161 = 546120^2 + 218881^2 .

It is a cyclic number.

It is not a de Polignac number, because 346155946561 - 2³ = 346155946553 is a prime.

It is a super-3 number, since 3×346155946561³ (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 (346155946501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1587871206 + ... + 1587871423.

It is an arithmetic number, because the mean of its divisors is an integer number (87332922325).

Almost surely, 2^346155946561 is an apocalyptic number.

It is an amenable number.

346155946561 is a deficient number, since it is larger than the sum of its proper divisors (3175742739).

346155946561 is a wasteful number, since it uses less digits than its factorization.

346155946561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175742738.

The product of its digits is 11664000, while the sum is 55.

The spelling of 346155946561 in words is "three hundred forty-six billion, one hundred fifty-five million, nine hundred forty-six thousand, five hundred sixty-one".