16594139537 has 2 divisors, whose sum is σ = 16594139538. Its totient is φ = 16594139536.

The previous prime is 16594139489. The next prime is 16594139543. The reversal of 16594139537 is 73593149561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12615557761 + 3978581776 = 112319^2 + 63076^2 .

It is an emirp because it is prime and its reverse (73593149561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16594139537 - 2⁶ = 16594139473 is a prime.

It is not a weakly prime, because it can be changed into another prime (16594130537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8297069768 + 8297069769.

It is an arithmetic number, because the mean of its divisors is an integer number (8297069769).

Almost surely, 2^16594139537 is an apocalyptic number.

It is an amenable number.

16594139537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16594139537 is an equidigital number, since it uses as much as digits as its factorization.

16594139537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3061800, while the sum is 53.

The spelling of 16594139537 in words is "sixteen billion, five hundred ninety-four million, one hundred thirty-nine thousand, five hundred thirty-seven".