16321225044 has 24 divisors (see below), whose sum is σ = 38475467968. Its totient is φ = 5384321280.

The previous prime is 16321225013. The next prime is 16321225111. The reversal of 16321225044 is 44052212361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7009672 + ... + 7011999.

Almost surely, 2^16321225044 is an apocalyptic number.

It is an amenable number.

16321225044 is an abundant number, since it is smaller than the sum of its proper divisors (22154242924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16321225044 is a wasteful number, since it uses less digits than its factorization.

16321225044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14021775 (or 14021773 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 16321225044 in words is "sixteen billion, three hundred twenty-one million, two hundred twenty-five thousand, forty-four".