168100644884033 has 2 divisors, whose sum is σ = 168100644884034. Its totient is φ = 168100644884032.

The previous prime is 168100644884009. The next prime is 168100644884069. The reversal of 168100644884033 is 330488446001861.

168100644884033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134678972686129 + 33421672197904 = 11605127^2 + 5781148^2 .

It is a cyclic number.

It is not a de Polignac number, because 168100644884033 - 2⁴⁴ = 150508458839617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168100644884033.

It is not a weakly prime, because it can be changed into another prime (168100644884233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84050322442016 + 84050322442017.

It is an arithmetic number, because the mean of its divisors is an integer number (84050322442017).

Almost surely, 2^{168100644884033} is an apocalyptic number.

It is an amenable number.

168100644884033 is a deficient number, since it is larger than the sum of its proper divisors (1).

168100644884033 is an equidigital number, since it uses as much as digits as its factorization.

168100644884033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 168100644884033 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-four thousand, thirty-three".