66560701082237 has 2 divisors, whose sum is σ = 66560701082238. Its totient is φ = 66560701082236.

The previous prime is 66560701082221. The next prime is 66560701082261. The reversal of 66560701082237 is 73228010706566.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60950904095236 + 5609796987001 = 7807106^2 + 2368501^2 .

It is a cyclic number.

It is not a de Polignac number, because 66560701082237 - 2⁴ = 66560701082221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66560701084237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33280350541118 + 33280350541119.

It is an arithmetic number, because the mean of its divisors is an integer number (33280350541119).

Almost surely, 2^{66560701082237} is an apocalyptic number.

It is an amenable number.

66560701082237 is a deficient number, since it is larger than the sum of its proper divisors (1).

66560701082237 is an equidigital number, since it uses as much as digits as its factorization.

66560701082237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 66560701082237 in words is "sixty-six trillion, five hundred sixty billion, seven hundred one million, eighty-two thousand, two hundred thirty-seven".