16938436033 has 2 divisors, whose sum is σ = 16938436034. Its totient is φ = 16938436032.

The previous prime is 16938435973. The next prime is 16938436051. The reversal of 16938436033 is 33063483961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16433445249 + 504990784 = 128193^2 + 22472^2 .

It is a cyclic number.

It is not a de Polignac number, because 16938436033 - 2¹⁷ = 16938304961 is a prime.

It is not a weakly prime, because it can be changed into another prime (16938436063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8469218016 + 8469218017.

It is an arithmetic number, because the mean of its divisors is an integer number (8469218017).

Almost surely, 2^16938436033 is an apocalyptic number.

It is an amenable number.

16938436033 is a deficient number, since it is larger than the sum of its proper divisors (1).

16938436033 is an equidigital number, since it uses as much as digits as its factorization.

16938436033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 16938436033 in words is "sixteen billion, nine hundred thirty-eight million, four hundred thirty-six thousand, thirty-three".