10605505109999 has 2 divisors, whose sum is σ = 10605505110000. Its totient is φ = 10605505109998.

The previous prime is 10605505109959. The next prime is 10605505110001. The reversal of 10605505109999 is 99990150550601.

It is a strong prime.

It is an emirp because it is prime and its reverse (99990150550601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10605505109999 - 2²⁰ = 10605504061423 is a prime.

It is a super-2 number, since 2×10605505109999² (a number of 27 digits) contains 22 as substring.

Together with 10605505110001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10605505109909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302752554999 + 5302752555000.

It is an arithmetic number, because the mean of its divisors is an integer number (5302752555000).

Almost surely, 2^{10605505109999} is an apocalyptic number.

10605505109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10605505109999 is an equidigital number, since it uses as much as digits as its factorization.

10605505109999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4920750, while the sum is 59.

The spelling of 10605505109999 in words is "ten trillion, six hundred five billion, five hundred five million, one hundred nine thousand, nine hundred ninety-nine".