16136924849 has 2 divisors, whose sum is σ = 16136924850. Its totient is φ = 16136924848.

The previous prime is 16136924831. The next prime is 16136924929. The reversal of 16136924849 is 94842963161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15340556449 + 796368400 = 123857^2 + 28220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16136924849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16136924849.

It is not a weakly prime, because it can be changed into another prime (16136924449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8068462424 + 8068462425.

It is an arithmetic number, because the mean of its divisors is an integer number (8068462425).

Almost surely, 2^16136924849 is an apocalyptic number.

It is an amenable number.

16136924849 is a deficient number, since it is larger than the sum of its proper divisors (1).

16136924849 is an equidigital number, since it uses as much as digits as its factorization.

16136924849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The spelling of 16136924849 in words is "sixteen billion, one hundred thirty-six million, nine hundred twenty-four thousand, eight hundred forty-nine".