16566427200 has 168 divisors, whose sum is σ = 55677998880. Its totient is φ = 4309913600.

The previous prime is 16566427193. The next prime is 16566427259. The reversal of 16566427200 is 272466561.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154711 + ... + 238889.

It is an arithmetic number, because the mean of its divisors is an integer number (331416660).

Almost surely, 2^16566427200 is an apocalyptic number.

16566427200 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 16566427200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27838999440).

16566427200 is an abundant number, since it is smaller than the sum of its proper divisors (39111571680).

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

16566427200 is a wasteful number, since it uses less digits than its factorization.

16566427200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84245 (or 84230 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 16566427200 in words is "sixteen billion, five hundred sixty-six million, four hundred twenty-seven thousand, two hundred".