16445611425 has 12 divisors (see below), whose sum is σ = 27190077680. Its totient is φ = 8770992720.

The previous prime is 16445611373. The next prime is 16445611541. The reversal of 16445611425 is 52411654461.

16445611425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16445611425 - 2⁹ = 16445610913 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 109637335 + ... + 109637484.

Almost surely, 2^16445611425 is an apocalyptic number.

16445611425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16445611425 is a deficient number, since it is larger than the sum of its proper divisors (10744466255).

16445611425 is a wasteful number, since it uses less digits than its factorization.

16445611425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219274832 (or 219274827 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The spelling of 16445611425 in words is "sixteen billion, four hundred forty-five million, six hundred eleven thousand, four hundred twenty-five".