16129509841 has 2 divisors, whose sum is σ = 16129509842. Its totient is φ = 16129509840.

The previous prime is 16129509829. The next prime is 16129509899. The reversal of 16129509841 is 14890592161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13845052225 + 2284457616 = 117665^2 + 47796^2 .

It is an emirp because it is prime and its reverse (14890592161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16129509841 is a prime.

It is a super-2 number, since 2×16129509841² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16129509791 and 16129509800.

It is not a weakly prime, because it can be changed into another prime (16129509541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8064754920 + 8064754921.

It is an arithmetic number, because the mean of its divisors is an integer number (8064754921).

Almost surely, 2^16129509841 is an apocalyptic number.

It is an amenable number.

16129509841 is a deficient number, since it is larger than the sum of its proper divisors (1).

16129509841 is an equidigital number, since it uses as much as digits as its factorization.

16129509841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 16129509841 in words is "sixteen billion, one hundred twenty-nine million, five hundred nine thousand, eight hundred forty-one".