3340865576561 has 2 divisors, whose sum is σ = 3340865576562. Its totient is φ = 3340865576560.

The previous prime is 3340865576501. The next prime is 3340865576567. The reversal of 3340865576561 is 1656755680433.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3293295785536 + 47569791025 = 1814744^2 + 218105^2 .

It is a cyclic number.

It is not a de Polignac number, because 3340865576561 - 2³⁰ = 3339791834737 is a prime.

It is a super-2 number, since 2×3340865576561² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3340865576561.

It is not a weakly prime, because it can be changed into another prime (3340865576567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1670432788280 + 1670432788281.

It is an arithmetic number, because the mean of its divisors is an integer number (1670432788281).

Almost surely, 2^{3340865576561} is an apocalyptic number.

It is an amenable number.

3340865576561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3340865576561 is an equidigital number, since it uses as much as digits as its factorization.

3340865576561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432000, while the sum is 59.

The spelling of 3340865576561 in words is "three trillion, three hundred forty billion, eight hundred sixty-five million, five hundred seventy-six thousand, five hundred sixty-one".