16063653321 has 8 divisors (see below), whose sum is σ = 23798004960. Its totient is φ = 10709102196.

The previous prime is 16063653317. The next prime is 16063653323. The reversal of 16063653321 is 12335636061.

16063653321 is a `hidden beast` number, since 1 + 60 + 63 + 6 + 533 + 2 + 1 = 666.

It is not a de Polignac number, because 16063653321 - 2² = 16063653317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16063653323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297475035 + ... + 297475088.

It is an arithmetic number, because the mean of its divisors is an integer number (2974750620).

Almost surely, 2^16063653321 is an apocalyptic number.

It is an amenable number.

16063653321 is a deficient number, since it is larger than the sum of its proper divisors (7734351639).

16063653321 is an equidigital number, since it uses as much as digits as its factorization.

16063653321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594950132 (or 594950126 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 16063653321 in words is "sixteen billion, sixty-three million, six hundred fifty-three thousand, three hundred twenty-one".