2123336655169 has 2 divisors, whose sum is σ = 2123336655170. Its totient is φ = 2123336655168.

The previous prime is 2123336655133. The next prime is 2123336655173. The reversal of 2123336655169 is 9615566333212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1812491378944 + 310845276225 = 1346288^2 + 557535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123336655169 - 2¹¹ = 2123336653121 is a prime.

It is a super-2 number, since 2×2123336655169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2123336655109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061668327584 + 1061668327585.

It is an arithmetic number, because the mean of its divisors is an integer number (1061668327585).

Almost surely, 2^{2123336655169} is an apocalyptic number.

It is an amenable number.

2123336655169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123336655169 is an equidigital number, since it uses as much as digits as its factorization.

2123336655169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 52.

The spelling of 2123336655169 in words is "two trillion, one hundred twenty-three billion, three hundred thirty-six million, six hundred fifty-five thousand, one hundred sixty-nine".