66502770305107 has 2 divisors, whose sum is σ = 66502770305108. Its totient is φ = 66502770305106.

The previous prime is 66502770305077. The next prime is 66502770305143. The reversal of 66502770305107 is 70150307720566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66502770305107 - 2⁷ = 66502770304979 is a prime.

It is not a weakly prime, because it can be changed into another prime (66502770305707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33251385152553 + 33251385152554.

It is an arithmetic number, because the mean of its divisors is an integer number (33251385152554).

Almost surely, 2^{66502770305107} is an apocalyptic number.

66502770305107 is a deficient number, since it is larger than the sum of its proper divisors (1).

66502770305107 is an equidigital number, since it uses as much as digits as its factorization.

66502770305107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 66502770305107 in words is "sixty-six trillion, five hundred two billion, seven hundred seventy million, three hundred five thousand, one hundred seven".