16432455074489 has 2 divisors, whose sum is σ = 16432455074490. Its totient is φ = 16432455074488.

The previous prime is 16432455074467. The next prime is 16432455074573. The reversal of 16432455074489 is 98447055423461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15890268787600 + 542186286889 = 3986260^2 + 736333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432455074489 is a prime.

It is a super-2 number, since 2×16432455074489² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16432455071489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216227537244 + 8216227537245.

It is an arithmetic number, because the mean of its divisors is an integer number (8216227537245).

It is a 1-persistent number, because it is pandigital, but 2⋅16432455074489 = 32864910148978 is not.

Almost surely, 2^{16432455074489} is an apocalyptic number.

It is an amenable number.

16432455074489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432455074489 is an equidigital number, since it uses as much as digits as its factorization.

16432455074489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116121600, while the sum is 62.

The spelling of 16432455074489 in words is "sixteen trillion, four hundred thirty-two billion, four hundred fifty-five million, seventy-four thousand, four hundred eighty-nine".