16555224160512 has 216 divisors, whose sum is σ = 48035163968064. Its totient is φ = 5483486195712.

The previous prime is 16555224160507. The next prime is 16555224160523. The reversal of 16555224160512 is 21506142255561.

It is a happy number.

16555224160512 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 5 + 2 + 24 + 1 + 605 + 12 = 666.

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, 791991853 + ... + 792012755.

Almost surely, 2^{16555224160512} is an apocalyptic number.

16555224160512 is a gapful number since it is divisible by the number (12) 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 16555224160512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24017581984032).

16555224160512 is an abundant number, since it is smaller than the sum of its proper divisors (31479939807552).

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

16555224160512 is a wasteful number, since it uses less digits than its factorization.

16555224160512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23085 (or 23068 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 16555224160512 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty-four million, one hundred sixty thousand, five hundred twelve".