66667740301 has 2 divisors, whose sum is σ = 66667740302. Its totient is φ = 66667740300.

The previous prime is 66667740287. The next prime is 66667740319. The reversal of 66667740301 is 10304776666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52333425225 + 14334315076 = 228765^2 + 119726^2 .

It is a cyclic number.

It is not a de Polignac number, because 66667740301 - 2¹¹ = 66667738253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66667740001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33333870150 + 33333870151.

It is an arithmetic number, because the mean of its divisors is an integer number (33333870151).

Almost surely, 2^66667740301 is an apocalyptic number.

It is an amenable number.

66667740301 is a deficient number, since it is larger than the sum of its proper divisors (1).

66667740301 is an equidigital number, since it uses as much as digits as its factorization.

66667740301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 66667740301 in words is "sixty-six billion, six hundred sixty-seven million, seven hundred forty thousand, three hundred one".