343105404561 has 6 divisors (see below), whose sum is σ = 495596695490. Its totient is φ = 228736936368.

The previous prime is 343105404557. The next prime is 343105404583. The reversal of 343105404561 is 165404501343.

343105404561 is a `hidden beast` number, since 3 + 4 + 3 + 10 + 540 + 45 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 282353014161 + 60752390400 = 531369^2 + 246480^2 .

It is not a de Polignac number, because 343105404561 - 2² = 343105404557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343105404461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19061411356 + ... + 19061411373.

Almost surely, 2^343105404561 is an apocalyptic number.

It is an amenable number.

343105404561 is a deficient number, since it is larger than the sum of its proper divisors (152491290929).

343105404561 is a wasteful number, since it uses less digits than its factorization.

343105404561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38122822735 (or 38122822732 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 343105404561 in words is "three hundred forty-three billion, one hundred five million, four hundred four thousand, five hundred sixty-one".