16181835999019 has 2 divisors, whose sum is σ = 16181835999020. Its totient is φ = 16181835999018.

The previous prime is 16181835999001. The next prime is 16181835999053. The reversal of 16181835999019 is 91099953818161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16181835999019 is a prime.

It is a super-2 number, since 2×16181835999019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16181835999079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8090917999509 + 8090917999510.

It is an arithmetic number, because the mean of its divisors is an integer number (8090917999510).

Almost surely, 2^{16181835999019} is an apocalyptic number.

16181835999019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16181835999019 is an equidigital number, since it uses as much as digits as its factorization.

16181835999019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37791360, while the sum is 70.

The spelling of 16181835999019 in words is "sixteen trillion, one hundred eighty-one billion, eight hundred thirty-five million, nine hundred ninety-nine thousand, nineteen".