16721462113 has 2 divisors, whose sum is σ = 16721462114. Its totient is φ = 16721462112.

The previous prime is 16721462039. The next prime is 16721462137. The reversal of 16721462113 is 31126412761.

16721462113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11853330129 + 4868131984 = 108873^2 + 69772^2 .

It is a cyclic number.

It is not a de Polignac number, because 16721462113 - 2¹³ = 16721453921 is a prime.

It is not a weakly prime, because it can be changed into another prime (16721462143) 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, 8360731056 + 8360731057.

It is an arithmetic number, because the mean of its divisors is an integer number (8360731057).

Almost surely, 2^16721462113 is an apocalyptic number.

It is an amenable number.

16721462113 is a deficient number, since it is larger than the sum of its proper divisors (1).

16721462113 is an equidigital number, since it uses as much as digits as its factorization.

16721462113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

Adding to 16721462113 its reverse (31126412761), we get a palindrome (47847874874).

The spelling of 16721462113 in words is "sixteen billion, seven hundred twenty-one million, four hundred sixty-two thousand, one hundred thirteen".