61341845655361 has 2 divisors, whose sum is σ = 61341845655362. Its totient is φ = 61341845655360.

The previous prime is 61341845655347. The next prime is 61341845655379. The reversal of 61341845655361 is 16355654814316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35934509811600 + 25407335843761 = 5994540^2 + 5040569^2 .

It is a cyclic number.

It is not a de Polignac number, because 61341845655361 - 2¹³ = 61341845647169 is a prime.

It is a super-2 number, since 2×61341845655361² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61341845655296 and 61341845655305.

It is not a weakly prime, because it can be changed into another prime (61341845655061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30670922827680 + 30670922827681.

It is an arithmetic number, because the mean of its divisors is an integer number (30670922827681).

Almost surely, 2^{61341845655361} is an apocalyptic number.

It is an amenable number.

61341845655361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61341845655361 is an equidigital number, since it uses as much as digits as its factorization.

61341845655361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104000, while the sum is 58.

The spelling of 61341845655361 in words is "sixty-one trillion, three hundred forty-one billion, eight hundred forty-five million, six hundred fifty-five thousand, three hundred sixty-one".