17122211663393 has 4 divisors (see below), whose sum is σ = 17584974140820. Its totient is φ = 16659449185968.

The previous prime is 17122211663377. The next prime is 17122211663429. The reversal of 17122211663393 is 39336611222171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11306049827809 + 5816161835584 = 3362447^2 + 2411672^2 .

It is a cyclic number.

It is not a de Polignac number, because 17122211663393 - 2⁴ = 17122211663377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17122211663353) 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 in 3 ways as a sum of consecutive naturals, for example, 231381238658 + ... + 231381238731.

It is an arithmetic number, because the mean of its divisors is an integer number (4396243535205).

Almost surely, 2^{17122211663393} is an apocalyptic number.

It is an amenable number.

17122211663393 is a deficient number, since it is larger than the sum of its proper divisors (462762477427).

17122211663393 is an equidigital number, since it uses as much as digits as its factorization.

17122211663393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462762477426.

The product of its digits is 489888, while the sum is 47.

The spelling of 17122211663393 in words is "seventeen trillion, one hundred twenty-two billion, two hundred eleven million, six hundred sixty-three thousand, three hundred ninety-three".