65933805861 has 48 divisors (see below), whose sum is σ = 121947116928. Its totient is φ = 33325603200.

The previous prime is 65933805827. The next prime is 65933805913. The reversal of 65933805861 is 16850833956.

65933805861 is a `hidden beast` number, since 6 + 59 + 3 + 3 + 8 + 0 + 586 + 1 = 666.

It is not a de Polignac number, because 65933805861 - 2¹¹ = 65933803813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65933805798 and 65933805807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65933805961) 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, 1260070 + ... + 1311351.

It is an arithmetic number, because the mean of its divisors is an integer number (2540564936).

Almost surely, 2^65933805861 is an apocalyptic number.

It is an amenable number.

65933805861 is a deficient number, since it is larger than the sum of its proper divisors (56013311067).

65933805861 is a wasteful number, since it uses less digits than its factorization.

65933805861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571482 (or 2571479 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 65933805861 in words is "sixty-five billion, nine hundred thirty-three million, eight hundred five thousand, eight hundred sixty-one".