16225228906 has 4 divisors (see below), whose sum is σ = 24337843362. Its totient is φ = 8112614452.

The previous prime is 16225228891. The next prime is 16225228907. The reversal of 16225228906 is 60982252261.

16225228906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16182129681 + 43099225 = 127209^2 + 6565^2 .

It is not an unprimeable number, because it can be changed into a prime (16225228907) 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, 4056307225 + ... + 4056307228.

Almost surely, 2^16225228906 is an apocalyptic number.

16225228906 is a deficient number, since it is larger than the sum of its proper divisors (8112614456).

16225228906 is an equidigital number, since it uses as much as digits as its factorization.

16225228906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112614455.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 16225228906 in words is "sixteen billion, two hundred twenty-five million, two hundred twenty-eight thousand, nine hundred six".