16696128433 has 2 divisors, whose sum is σ = 16696128434. Its totient is φ = 16696128432.

The previous prime is 16696128377. The next prime is 16696128517. The reversal of 16696128433 is 33482169661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12710984049 + 3985144384 = 112743^2 + 63128^2 .

It is a cyclic number.

It is not a de Polignac number, because 16696128433 - 2¹⁷ = 16695997361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16696188433) 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, 8348064216 + 8348064217.

It is an arithmetic number, because the mean of its divisors is an integer number (8348064217).

Almost surely, 2^16696128433 is an apocalyptic number.

It is an amenable number.

16696128433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16696128433 is an equidigital number, since it uses as much as digits as its factorization.

16696128433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The spelling of 16696128433 in words is "sixteen billion, six hundred ninety-six million, one hundred twenty-eight thousand, four hundred thirty-three".