16738216837 has 2 divisors, whose sum is σ = 16738216838. Its totient is φ = 16738216836.

The previous prime is 16738216799. The next prime is 16738216867. The reversal of 16738216837 is 73861283761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14415844356 + 2322372481 = 120066^2 + 48191^2 .

It is a cyclic number.

It is not a de Polignac number, because 16738216837 - 2³¹ = 14590733189 is a prime.

It is a super-3 number, since 3×16738216837³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16738216867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8369108418 + 8369108419.

It is an arithmetic number, because the mean of its divisors is an integer number (8369108419).

Almost surely, 2^16738216837 is an apocalyptic number.

It is an amenable number.

16738216837 is a deficient number, since it is larger than the sum of its proper divisors (1).

16738216837 is an equidigital number, since it uses as much as digits as its factorization.

16738216837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 52.

The spelling of 16738216837 in words is "sixteen billion, seven hundred thirty-eight million, two hundred sixteen thousand, eight hundred thirty-seven".