17680201436641 has 2 divisors, whose sum is σ = 17680201436642. Its totient is φ = 17680201436640.

The previous prime is 17680201436629. The next prime is 17680201436741. The reversal of 17680201436641 is 14663410208671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13855673627041 + 3824527809600 = 3722321^2 + 1955640^2 .

It is a cyclic number.

It is not a de Polignac number, because 17680201436641 - 2⁵ = 17680201436609 is a prime.

It is not a weakly prime, because it can be changed into another prime (17680201436341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8840100718320 + 8840100718321.

It is an arithmetic number, because the mean of its divisors is an integer number (8840100718321).

Almost surely, 2^{17680201436641} is an apocalyptic number.

It is an amenable number.

17680201436641 is a deficient number, since it is larger than the sum of its proper divisors (1).

17680201436641 is an equidigital number, since it uses as much as digits as its factorization.

17680201436641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 17680201436641 in words is "seventeen trillion, six hundred eighty billion, two hundred one million, four hundred thirty-six thousand, six hundred forty-one".