341605721641 has 16 divisors (see below), whose sum is σ = 344474876304. Its totient is φ = 338750705664.

The previous prime is 341605721599. The next prime is 341605721719. The reversal of 341605721641 is 146127506143.

It can be written as a sum of positive squares in 8 ways, for example, as 40078438416 + 301527283225 = 200196^2 + 549115^2 .

It is a cyclic number.

It is not a de Polignac number, because 341605721641 - 2¹⁷ = 341605590569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 341605721594 and 341605721603.

It is not an unprimeable number, because it can be changed into a prime (341605721141) 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, 148976491 + ... + 148978783.

It is an arithmetic number, because the mean of its divisors is an integer number (21529679769).

Almost surely, 2^341605721641 is an apocalyptic number.

It is an amenable number.

341605721641 is a deficient number, since it is larger than the sum of its proper divisors (2869154663).

341605721641 is a wasteful number, since it uses less digits than its factorization.

341605721641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 341605721641 in words is "three hundred forty-one billion, six hundred five million, seven hundred twenty-one thousand, six hundred forty-one".