65220515612093 has 2 divisors, whose sum is σ = 65220515612094. Its totient is φ = 65220515612092.

The previous prime is 65220515612081. The next prime is 65220515612209. The reversal of 65220515612093 is 39021651502256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56351715941284 + 8868799670809 = 7506778^2 + 2978053^2 .

It is a cyclic number.

It is not a de Polignac number, because 65220515612093 - 2⁶ = 65220515612029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65220515612393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32610257806046 + 32610257806047.

It is an arithmetic number, because the mean of its divisors is an integer number (32610257806047).

Almost surely, 2^{65220515612093} is an apocalyptic number.

It is an amenable number.

65220515612093 is a deficient number, since it is larger than the sum of its proper divisors (1).

65220515612093 is an equidigital number, since it uses as much as digits as its factorization.

65220515612093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 65220515612093 in words is "sixty-five trillion, two hundred twenty billion, five hundred fifteen million, six hundred twelve thousand, ninety-three".