13221320176 has 20 divisors (see below), whose sum is σ = 25635171744. Its totient is φ = 6605792000.

The previous prime is 13221320171. The next prime is 13221320191. The reversal of 13221320176 is 67102312231.

It is a super-3 number, since 3×13221320176³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221320171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281800 + ... + 325351.

Almost surely, 2^13221320176 is an apocalyptic number.

13221320176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13221320176 is a deficient number, since it is larger than the sum of its proper divisors (12413851568).

13221320176 is a wasteful number, since it uses less digits than its factorization.

13221320176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608520 (or 608514 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 13221320176 in words is "thirteen billion, two hundred twenty-one million, three hundred twenty thousand, one hundred seventy-six".