16021112729 has 2 divisors, whose sum is σ = 16021112730. Its totient is φ = 16021112728.

The previous prime is 16021112719. The next prime is 16021112761. The reversal of 16021112729 is 92721112061.

It is an a-pointer prime, because the next prime (16021112761) can be obtained adding 16021112729 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13558273600 + 2462839129 = 116440^2 + 49627^2 .

It is a cyclic number.

It is not a de Polignac number, because 16021112729 - 2⁴ = 16021112713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16021112695 and 16021112704.

It is not a weakly prime, because it can be changed into another prime (16021112719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010556364 + 8010556365.

It is an arithmetic number, because the mean of its divisors is an integer number (8010556365).

Almost surely, 2^16021112729 is an apocalyptic number.

It is an amenable number.

16021112729 is a deficient number, since it is larger than the sum of its proper divisors (1).

16021112729 is an equidigital number, since it uses as much as digits as its factorization.

16021112729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 16021112729 in words is "sixteen billion, twenty-one million, one hundred twelve thousand, seven hundred twenty-nine".