340328761370561 has 2 divisors, whose sum is σ = 340328761370562. Its totient is φ = 340328761370560.

The previous prime is 340328761370503. The next prime is 340328761370599. The reversal of 340328761370561 is 165073167823043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293530916969536 + 46797844401025 = 17132744^2 + 6840895^2 .

It is a cyclic number.

It is not a de Polignac number, because 340328761370561 - 2¹⁰ = 340328761369537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340328761370497 and 340328761370506.

It is not a weakly prime, because it can be changed into another prime (340328761370461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170164380685280 + 170164380685281.

It is an arithmetic number, because the mean of its divisors is an integer number (170164380685281).

Almost surely, 2^{340328761370561} is an apocalyptic number.

It is an amenable number.

340328761370561 is a deficient number, since it is larger than the sum of its proper divisors (1).

340328761370561 is an equidigital number, since it uses as much as digits as its factorization.

340328761370561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 56.

The spelling of 340328761370561 in words is "three hundred forty trillion, three hundred twenty-eight billion, seven hundred sixty-one million, three hundred seventy thousand, five hundred sixty-one".