16845562969 has 2 divisors, whose sum is σ = 16845562970. Its totient is φ = 16845562968.

The previous prime is 16845562961. The next prime is 16845562999. The reversal of 16845562969 is 96926554861.

16845562969 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., 15232496400 + 1613066569 = 123420^2 + 40163^2 .

It is a cyclic number.

It is not a de Polignac number, because 16845562969 - 2³ = 16845562961 is a prime.

It is a super-2 number, since 2×16845562969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16845562961) 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, 8422781484 + 8422781485.

It is an arithmetic number, because the mean of its divisors is an integer number (8422781485).

Almost surely, 2^16845562969 is an apocalyptic number.

It is an amenable number.

16845562969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16845562969 is an equidigital number, since it uses as much as digits as its factorization.

16845562969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 61.

The spelling of 16845562969 in words is "sixteen billion, eight hundred forty-five million, five hundred sixty-two thousand, nine hundred sixty-nine".