16690863361 has 2 divisors, whose sum is σ = 16690863362. Its totient is φ = 16690863360.

The previous prime is 16690863323. The next prime is 16690863407. The reversal of 16690863361 is 16336809661.

16690863361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11676099136 + 5014764225 = 108056^2 + 70815^2 .

It is a cyclic number.

It is not a de Polignac number, because 16690863361 - 2⁹ = 16690862849 is a prime.

It is not a weakly prime, because it can be changed into another prime (16690869361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8345431680 + 8345431681.

It is an arithmetic number, because the mean of its divisors is an integer number (8345431681).

Almost surely, 2^16690863361 is an apocalyptic number.

It is an amenable number.

16690863361 is a deficient number, since it is larger than the sum of its proper divisors (1).

16690863361 is an equidigital number, since it uses as much as digits as its factorization.

16690863361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 16690863361 in words is "sixteen billion, six hundred ninety million, eight hundred sixty-three thousand, three hundred sixty-one".