1366120601641 has 2 divisors, whose sum is σ = 1366120601642. Its totient is φ = 1366120601640.

The previous prime is 1366120601563. The next prime is 1366120601669. The reversal of 1366120601641 is 1461060216631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1069509657241 + 296610944400 = 1034171^2 + 544620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366120601641 - 2¹¹ = 1366120599593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1366120601641.

It is not a weakly prime, because it can be changed into another prime (1366120601141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683060300820 + 683060300821.

It is an arithmetic number, because the mean of its divisors is an integer number (683060300821).

Almost surely, 2^{1366120601641} is an apocalyptic number.

It is an amenable number.

1366120601641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366120601641 is an equidigital number, since it uses as much as digits as its factorization.

1366120601641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 1366120601641 in words is "one trillion, three hundred sixty-six billion, one hundred twenty million, six hundred one thousand, six hundred forty-one".