16432523166425 has 36 divisors (see below), whose sum is σ = 21305898119100. Its totient is φ = 12571427996160.

The previous prime is 16432523166383. The next prime is 16432523166431. The reversal of 16432523166425 is 52466132523461.

It can be written as a sum of positive squares in 6 ways, for example, as 55155931609 + 16377367234816 = 234853^2 + 4046896^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16432523166425 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55622501 + ... + 55917149.

Almost surely, 2^{16432523166425} is an apocalyptic number.

It is an amenable number.

16432523166425 is a deficient number, since it is larger than the sum of its proper divisors (4873374952675).

16432523166425 is a wasteful number, since it uses less digits than its factorization.

16432523166425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298922 (or 298894 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 50.

Adding to 16432523166425 its reverse (52466132523461), we get a palindrome (68898655689886).

The spelling of 16432523166425 in words is "sixteen trillion, four hundred thirty-two billion, five hundred twenty-three million, one hundred sixty-six thousand, four hundred twenty-five".