65684686041 has 48 divisors (see below), whose sum is σ = 107954683200. Its totient is φ = 38151202176.

The previous prime is 65684686013. The next prime is 65684686057. The reversal of 65684686041 is 14068648656.

65684686041 is a `hidden beast` number, since 65 + 68 + 468 + 60 + 4 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-65684686041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65684684041) 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 47 ways as a sum of consecutive naturals, for example, 543066 + ... + 652908.

It is an arithmetic number, because the mean of its divisors is an integer number (2249055900).

Almost surely, 2^65684686041 is an apocalyptic number.

It is an amenable number.

65684686041 is a deficient number, since it is larger than the sum of its proper divisors (42269997159).

65684686041 is a wasteful number, since it uses less digits than its factorization.

65684686041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110150 (or 110147 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 65684686041 in words is "sixty-five billion, six hundred eighty-four million, six hundred eighty-six thousand, forty-one".