16321224960 has 216 divisors, whose sum is σ = 59442626880. Its totient is φ = 4123201536.

The previous prime is 16321224949. The next prime is 16321224961. The reversal of 16321224960 is 6942212361.

It is a happy number.

16321224960 is a `hidden beast` number, since 1 + 632 + 12 + 2 + 4 + 9 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16321224961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181597 + ... + 256163.

Almost surely, 2^16321224960 is an apocalyptic number.

16321224960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16321224960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29721313440).

16321224960 is an abundant number, since it is smaller than the sum of its proper divisors (43121401920).

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

16321224960 is a wasteful number, since it uses less digits than its factorization.

16321224960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74613 (or 74596 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 16321224960 in words is "sixteen billion, three hundred twenty-one million, two hundred twenty-four thousand, nine hundred sixty".