6764999220169 has 2 divisors, whose sum is σ = 6764999220170. Its totient is φ = 6764999220168.

The previous prime is 6764999220121. The next prime is 6764999220181. The reversal of 6764999220169 is 9610229994676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3418338765625 + 3346660454544 = 1848875^2 + 1829388^2 .

It is a cyclic number.

It is not a de Polignac number, because 6764999220169 - 2¹¹ = 6764999218121 is a prime.

It is a super-2 number, since 2×6764999220169² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6764999220098 and 6764999220107.

It is not a weakly prime, because it can be changed into another prime (6764999224169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382499610084 + 3382499610085.

It is an arithmetic number, because the mean of its divisors is an integer number (3382499610085).

Almost surely, 2^{6764999220169} is an apocalyptic number.

It is an amenable number.

6764999220169 is a deficient number, since it is larger than the sum of its proper divisors (1).

6764999220169 is an equidigital number, since it uses as much as digits as its factorization.

6764999220169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158723712, while the sum is 70.

The spelling of 6764999220169 in words is "six trillion, seven hundred sixty-four billion, nine hundred ninety-nine million, two hundred twenty thousand, one hundred sixty-nine".