65984616001 has 2 divisors, whose sum is σ = 65984616002. Its totient is φ = 65984616000.

The previous prime is 65984615999. The next prime is 65984616007. The reversal of 65984616001 is 10061648956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39235686400 + 26748929601 = 198080^2 + 163551^2 .

It is a cyclic number.

It is not a de Polignac number, because 65984616001 - 2¹ = 65984615999 is a prime.

Together with 65984615999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65984616007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32992308000 + 32992308001.

It is an arithmetic number, because the mean of its divisors is an integer number (32992308001).

Almost surely, 2^65984616001 is an apocalyptic number.

It is an amenable number.

65984616001 is a deficient number, since it is larger than the sum of its proper divisors (1).

65984616001 is an equidigital number, since it uses as much as digits as its factorization.

65984616001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 65984616001 in words is "sixty-five billion, nine hundred eighty-four million, six hundred sixteen thousand, one".