168039677833 has 2 divisors, whose sum is σ = 168039677834. Its totient is φ = 168039677832.

The previous prime is 168039677809. The next prime is 168039677843. The reversal of 168039677833 is 338776930861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160349790969 + 7689886864 = 400437^2 + 87692^2 .

It is a cyclic number.

It is not a de Polignac number, because 168039677833 - 2⁵ = 168039677801 is a prime.

It is not a weakly prime, because it can be changed into another prime (168039677843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84019838916 + 84019838917.

It is an arithmetic number, because the mean of its divisors is an integer number (84019838917).

Almost surely, 2^168039677833 is an apocalyptic number.

It is an amenable number.

168039677833 is a deficient number, since it is larger than the sum of its proper divisors (1).

168039677833 is an equidigital number, since it uses as much as digits as its factorization.

168039677833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 168039677833 in words is "one hundred sixty-eight billion, thirty-nine million, six hundred seventy-seven thousand, eight hundred thirty-three".