16355888122019 has 2 divisors, whose sum is σ = 16355888122020. Its totient is φ = 16355888122018.

The previous prime is 16355888122009. The next prime is 16355888122177. The reversal of 16355888122019 is 91022188855361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16355888122019 - 2¹² = 16355888117923 is a prime.

It is a super-2 number, since 2×16355888122019² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16355888122009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8177944061009 + 8177944061010.

It is an arithmetic number, because the mean of its divisors is an integer number (8177944061010).

Almost surely, 2^{16355888122019} is an apocalyptic number.

16355888122019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16355888122019 is an equidigital number, since it uses as much as digits as its factorization.

16355888122019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8294400, while the sum is 59.

The spelling of 16355888122019 in words is "sixteen trillion, three hundred fifty-five billion, eight hundred eighty-eight million, one hundred twenty-two thousand, nineteen".