65990683606097 has 2 divisors, whose sum is σ = 65990683606098. Its totient is φ = 65990683606096.

The previous prime is 65990683606091. The next prime is 65990683606201. The reversal of 65990683606097 is 79060638609956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65366190124096 + 624493482001 = 8084936^2 + 790249^2 .

It is a cyclic number.

It is not a de Polignac number, because 65990683606097 - 2³² = 65986388638801 is a prime.

It is not a weakly prime, because it can be changed into another prime (65990683606091) 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 as a sum of consecutive naturals, namely, 32995341803048 + 32995341803049.

It is an arithmetic number, because the mean of its divisors is an integer number (32995341803049).

Almost surely, 2^{65990683606097} is an apocalyptic number.

It is an amenable number.

65990683606097 is a deficient number, since it is larger than the sum of its proper divisors (1).

65990683606097 is an equidigital number, since it uses as much as digits as its factorization.

65990683606097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793618560, while the sum is 74.

The spelling of 65990683606097 in words is "sixty-five trillion, nine hundred ninety billion, six hundred eighty-three million, six hundred six thousand, ninety-seven".