16197652800 has 1008 divisors, whose sum is σ = 69828899712. Its totient is φ = 3483648000.

The previous prime is 16197652747. The next prime is 16197652829. The reversal of 16197652800 is 825679161.

16197652800 is a `hidden beast` number, since 1 + 619 + 7 + 6 + 5 + 28 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 160372750 + ... + 160372850.

Almost surely, 2^16197652800 is an apocalyptic number.

16197652800 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 16197652800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34914449856).

16197652800 is an abundant number, since it is smaller than the sum of its proper divisors (53631246912).

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

16197652800 is a wasteful number, since it uses less digits than its factorization.

16197652800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 16197652800 in words is "sixteen billion, one hundred ninety-seven million, six hundred fifty-two thousand, eight hundred".