16662225325 has 12 divisors (see below), whose sum is σ = 20726346420. Its totient is φ = 13287724160.

The previous prime is 16662225241. The next prime is 16662225361. The reversal of 16662225325 is 52352226661.

16662225325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 457189924 + 16205035401 = 21382^2 + 127299^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16662225325 is a prime.

It is a congruent 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, 1043320 + ... + 1059169.

It is an arithmetic number, because the mean of its divisors is an integer number (1727195535).

Almost surely, 2^16662225325 is an apocalyptic number.

It is an amenable number.

16662225325 is a deficient number, since it is larger than the sum of its proper divisors (4064121095).

16662225325 is a wasteful number, since it uses less digits than its factorization.

16662225325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102816 (or 2102811 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 16662225325 in words is "sixteen billion, six hundred sixty-two million, two hundred twenty-five thousand, three hundred twenty-five".