16791860149 has 2 divisors, whose sum is σ = 16791860150. Its totient is φ = 16791860148.

The previous prime is 16791860123. The next prime is 16791860213. The reversal of 16791860149 is 94106819761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15554579524 + 1237280625 = 124718^2 + 35175^2 .

It is a cyclic number.

It is not a de Polignac number, because 16791860149 - 2¹⁷ = 16791729077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16791860096 and 16791860105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16791860119) 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, 8395930074 + 8395930075.

It is an arithmetic number, because the mean of its divisors is an integer number (8395930075).

Almost surely, 2^16791860149 is an apocalyptic number.

It is an amenable number.

16791860149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16791860149 is an equidigital number, since it uses as much as digits as its factorization.

16791860149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 16791860149 in words is "sixteen billion, seven hundred ninety-one million, eight hundred sixty thousand, one hundred forty-nine".