65560394061 has 40 divisors (see below), whose sum is σ = 100316170944. Its totient is φ = 42646746240.

The previous prime is 65560394059. The next prime is 65560394069. The reversal of 65560394061 is 16049306556.

65560394061 is a `hidden beast` number, since 6 + 556 + 0 + 3 + 94 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 65560394061 - 2¹ = 65560394059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65560393998 and 65560394016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65560394069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3581845 + ... + 3600101.

Almost surely, 2^65560394061 is an apocalyptic number.

It is an amenable number.

65560394061 is a deficient number, since it is larger than the sum of its proper divisors (34755776883).

65560394061 is a wasteful number, since it uses less digits than its factorization.

65560394061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19343 (or 19334 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 65560394061 in words is "sixty-five billion, five hundred sixty million, three hundred ninety-four thousand, sixty-one".