1680238640033 has 2 divisors, whose sum is σ = 1680238640034. Its totient is φ = 1680238640032.

The previous prime is 1680238640023. The next prime is 1680238640063. The reversal of 1680238640033 is 3300468320861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1378961701264 + 301276938769 = 1174292^2 + 548887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680238640033 - 2¹⁸ = 1680238377889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680238640023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840119320016 + 840119320017.

It is an arithmetic number, because the mean of its divisors is an integer number (840119320017).

Almost surely, 2^{1680238640033} is an apocalyptic number.

It is an amenable number.

1680238640033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680238640033 is an equidigital number, since it uses as much as digits as its factorization.

1680238640033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 1680238640033 in words is "one trillion, six hundred eighty billion, two hundred thirty-eight million, six hundred forty thousand, thirty-three".