66301835969 has 2 divisors, whose sum is σ = 66301835970. Its totient is φ = 66301835968.

The previous prime is 66301835953. The next prime is 66301835987. The reversal of 66301835969 is 96953810366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64306873744 + 1994962225 = 253588^2 + 44665^2 .

It is a cyclic number.

It is not a de Polignac number, because 66301835969 - 2⁴ = 66301835953 is a prime.

It is a super-2 number, since 2×66301835969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (66301832969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33150917984 + 33150917985.

It is an arithmetic number, because the mean of its divisors is an integer number (33150917985).

Almost surely, 2^66301835969 is an apocalyptic number.

It is an amenable number.

66301835969 is a deficient number, since it is larger than the sum of its proper divisors (1).

66301835969 is an equidigital number, since it uses as much as digits as its factorization.

66301835969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 66301835969 in words is "sixty-six billion, three hundred one million, eight hundred thirty-five thousand, nine hundred sixty-nine".