667481050006201 has 2 divisors, whose sum is σ = 667481050006202. Its totient is φ = 667481050006200.

The previous prime is 667481050006171. The next prime is 667481050006271. The reversal of 667481050006201 is 102600050184766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463870410597801 + 203610639408400 = 21537651^2 + 14269220^2 .

It is a cyclic number.

It is not a de Polignac number, because 667481050006201 - 2¹⁵ = 667481049973433 is a prime.

It is not a weakly prime, because it can be changed into another prime (667481050006271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333740525003100 + 333740525003101.

It is an arithmetic number, because the mean of its divisors is an integer number (333740525003101).

Almost surely, 2^{667481050006201} is an apocalyptic number.

It is an amenable number.

667481050006201 is a deficient number, since it is larger than the sum of its proper divisors (1).

667481050006201 is an equidigital number, since it uses as much as digits as its factorization.

667481050006201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 667481050006201 in words is "six hundred sixty-seven trillion, four hundred eighty-one billion, fifty million, six thousand, two hundred one".