344455555556669 has 2 divisors, whose sum is σ = 344455555556670. Its totient is φ = 344455555556668.

The previous prime is 344455555556659. The next prime is 344455555556681. The reversal of 344455555556669 is 966655555554443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343858165688569 + 597389868100 = 18543413^2 + 772910^2 .

It is an emirp because it is prime and its reverse (966655555554443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344455555556669 - 2²⁴ = 344455538779453 is a prime.

It is a super-2 number, since 2×344455555556669² (a number of 30 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 344455555556669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344455555556659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172227777778334 + 172227777778335.

It is an arithmetic number, because the mean of its divisors is an integer number (172227777778335).

Almost surely, 2^{344455555556669} is an apocalyptic number.

It is an amenable number.

344455555556669 is a deficient number, since it is larger than the sum of its proper divisors (1).

344455555556669 is an equidigital number, since it uses as much as digits as its factorization.

344455555556669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160000000, while the sum is 77.

The spelling of 344455555556669 in words is "three hundred forty-four trillion, four hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-six thousand, six hundred sixty-nine".