16365129919 has 2 divisors, whose sum is σ = 16365129920. Its totient is φ = 16365129918.

The previous prime is 16365129899. The next prime is 16365129929. The reversal of 16365129919 is 91992156361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16365129919 - 2³¹ = 14217646271 is a prime.

It is a super-2 number, since 2×16365129919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16365129929) 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 as a sum of consecutive naturals, namely, 8182564959 + 8182564960.

It is an arithmetic number, because the mean of its divisors is an integer number (8182564960).

Almost surely, 2^16365129919 is an apocalyptic number.

16365129919 is a deficient number, since it is larger than the sum of its proper divisors (1).

16365129919 is an equidigital number, since it uses as much as digits as its factorization.

16365129919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 787320, while the sum is 52.

The spelling of 16365129919 in words is "sixteen billion, three hundred sixty-five million, one hundred twenty-nine thousand, nine hundred nineteen".