168100644883859 has 2 divisors, whose sum is σ = 168100644883860. Its totient is φ = 168100644883858.

The previous prime is 168100644883807. The next prime is 168100644883861. The reversal of 168100644883859 is 958388446001861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168100644883859 - 2¹² = 168100644879763 is a prime.

Together with 168100644883861, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 168100644883792 and 168100644883801.

It is not a weakly prime, because it can be changed into another prime (168100644883879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84050322441929 + 84050322441930.

It is an arithmetic number, because the mean of its divisors is an integer number (84050322441930).

Almost surely, 2^{168100644883859} is an apocalyptic number.

168100644883859 is a deficient number, since it is larger than the sum of its proper divisors (1).

168100644883859 is an equidigital number, since it uses as much as digits as its factorization.

168100644883859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 318504960, while the sum is 71.

The spelling of 168100644883859 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-three thousand, eight hundred fifty-nine".