1365565061241 has 24 divisors (see below), whose sum is σ = 2063976370560. Its totient is φ = 868369451136.

The previous prime is 1365565061239. The next prime is 1365565061249. The reversal of 1365565061241 is 1421605655631.

1365565061241 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 565 + 0 + 61 + 24 + 1 = 666.

It is not a de Polignac number, because 1365565061241 - 2¹ = 1365565061239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1365565061249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9113616 + ... + 9262241.

It is an arithmetic number, because the mean of its divisors is an integer number (85999015440).

Almost surely, 2^{1365565061241} is an apocalyptic number.

It is an amenable number.

1365565061241 is a deficient number, since it is larger than the sum of its proper divisors (698411309319).

1365565061241 is a wasteful number, since it uses less digits than its factorization.

1365565061241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376245 (or 18376242 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 1365565061241 in words is "one trillion, three hundred sixty-five billion, five hundred sixty-five million, sixty-one thousand, two hundred forty-one".