339956645669 has 2 divisors, whose sum is σ = 339956645670. Its totient is φ = 339956645668.

The previous prime is 339956645663. The next prime is 339956645713. The reversal of 339956645669 is 966546659933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329776844644 + 10179801025 = 574262^2 + 100895^2 .

It is a cyclic number.

It is not a de Polignac number, because 339956645669 - 2¹² = 339956641573 is a prime.

It is a super-2 number, since 2×339956645669² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339956645663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169978322834 + 169978322835.

It is an arithmetic number, because the mean of its divisors is an integer number (169978322835).

Almost surely, 2^339956645669 is an apocalyptic number.

It is an amenable number.

339956645669 is a deficient number, since it is larger than the sum of its proper divisors (1).

339956645669 is an equidigital number, since it uses as much as digits as its factorization.

339956645669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850305600, while the sum is 71.

The spelling of 339956645669 in words is "three hundred thirty-nine billion, nine hundred fifty-six million, six hundred forty-five thousand, six hundred sixty-nine".